This makes firefox 60 and 68 able to load some fonts and fixes the issue
that fonts were rendered as garbled text

This code have been moved to slapos.core

Because of a bug in `slapos/testcase`, ldd check was not properly reporting several problems, because several components were using system libraries.

These are the changes to profiles, adding the missing rpath and other changes so that components do not use system libraries either by explicitly providing the libraries so that the configure script does not use system development libraries if they are available ( like for zstd ) or by disabling the features at compile time for features we don't use ( like the `--without-icu` for boost )

See merge request !732

Fix this random failure we sometimes have, like [here](https://nexedijs.erp5.net/#/test_result_module/20200414-44DF7D23/11) by adding a promise so that test does not try to connect to a nginx that's not started yet

```
======================================================================
ERROR: test (test.TestJSTestNode)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "parts/slapos-repository/software/jstestnode/test/test.py", line 60, in test
    '%sjio/test/tests.html' % (connection_dict['nginx'], ), allow_redirects=False)
  File "eggs/requests-2.20.0-py2.7.egg/requests/api.py", line 75, in get
    return request('get', url, params=params, **kwargs)
  File "eggs/requests-2.20.0-py2.7.egg/requests/api.py", line 60, in request
    return session.request(method=method, url=url, **kwargs)
  File "eggs/requests-2.20.0-py2.7.egg/requests/sessions.py", line 524, in request
    resp = self.send(prep, **send_kwargs)
  File "eggs/requests-2.20.0-py2.7.egg/requests/sessions.py", line 637, in send
    r = adapter.send(request, **kwargs)
  File "eggs/requests-2.20.0-py2.7.egg/requests/adapters.py", line 516, in send
    raise ConnectionError(e, request=request)
ConnectionError: HTTPConnectionPool(host='::1', port=9443): Max retries exceeded with url: /jio/test/tests.html (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x7f9b01f4b310>: Failed to establish a new connection: [Errno 111] Connection refused',))

```

See merge request !733

Several software use `slapos` command and expect this command to have networkcache support enabled, which is achieved in buildout by having `slapos.libnetworkcache` in the egg "working set" when generating the slapos script.

Introduce a dedicated section to install `slapos` command and use it in softwares which includes a slapos, testnode and slaprunner. Test softwares like slapos-sr-testing also need a slapos command, but they generate one with development version of slapos.core.

Before these changes, several software were installing `slapos` indirectly by installing `extra-eggs` from monitoring stack. The monitoring stack was also modified so that it uses a section with a prefix (`monitor-eggs`) and users of monitoring stacks were also modified to not use this `extra-eggs` part from monitoring stack, but install eggs through their own section.

Similar problem also existed with `slapos.toolbox`, which is installed by several softwares and stacks, for different reasons (because it contains lots of utilities), now that buildout detects parts installing the same path, only one parts can install the scripts. For this, define a section `slapos-toolbox` that software and stack should install, instead of listing the egg as `eggs` in a `zc.recipe.egg` section, because that would install the scripts again.

See merge request !729

When we have a section to generate a python interpreter with eggs built
in, don't name this `extra-eggs` because the meaning is not clear.

This section installs slapos.toolbox eggs with dependencies and install
scripts

Despite the name, this section was inherited from monitor, but now that
we fixed monitor to prefix the sections, this section is no longer
extended from monitor, but defined in softwares

Also build the binaries as static so that they don't use system
libraries.

To prevent using system libraries

Otherwise it will try to use development system package and we will have
different results depending on wether that package is installed or not.

Note that because of a typo in the environment variable (this makefile
uses $LDFLAGS, slapos zlib was not effective so far)

slap_connection is deprecated

This prevent naming conflicts in softwares extending and is cleaner.

Also other cleanups:
 - install an interpreter with a prefix, for similar reason
 - list monitor scripts explicitly, so that we don't have collisions
   with other sections installing same eggs (eg. slapos.core)
 - use ${buildout:bin-directory} instead of guessing it

This section installs a slapos command with network cache enabled, for
softwares using an embedded slapos.

Only install required eggs, drop unused [testnode] section

this section is supposed to install slapos.cookbook, the egg with
recipe at this point slapos.libnetworkcache should be already available.

* use strings for options, not `sets` which requires to use the `'!py!'` syntax and only works on a patched buildout
* supports regenerating config, like when for example IP change
* Removes the backup part of the recipe, which we don't use and looks buggy.
* fix python3 support

See merge request !727

This should fix this random failure with tests:

    ======================================================================
    FAIL: test_influxdb_api (test.TestInfluxDb)
    ----------------------------------------------------------------------
    Traceback (most recent call last):
      File "parts/slapos-repository/software/grafana/test/test.py", line 126, in test_influxdb_api
        [connection_params['influxdb-database']], result['series'][0]['values'])
    AssertionError: ['telegraf'] not found in [[u'_internal']]

This script everything required to release slapos.cookbook, and verbose additional information to
the user review and push the changes.

This script automatically slapos.cookbook version on update stack/slapos.cfg also, if you want only
release the EGG w/o using it, you can call it using:

 EGG_ONLY=Y bash release-cookbook

else, call it only by 'bash release-cookbook'.

  This script should be invoked to release a new software release, it will use what is in 1.0 branch to create
  the tag, and it will verbose the follow information...

###################################################################
You are about to release a new version of SlapOS Software Release
Lastest release: 1.0.144
Next Release to be Tagged: 1.0.145
###################################################################
 Please review current tag and them push it:
 To review use git log 1.0.145

 To push into main repository:
 git push origin 1.0.145

Update Thiea to 1.0, described a bit on :
 https://dev.to/svenefftinge/theia-1-0-finally-a-good-browser-ide-3ok0

Add by default some extensions for python and buildout. Also request a frontend so that we can access over IPv4

See merge request !725

As we have runners with a section deployed using
collective.recipe.shelloutput, if collective.recipe.shelloutput isn't in
the SR folder anymore thisi section can't be uninstalled (as the
uninstall method is defined in the egg).

The output of buildout for this error was :

While:
  Installing.
  Uninstalling runner-sshkeys-publickey-fingerprint-shelloutput.
  Installing recipe collective.recipe.shelloutput.
  Getting distribution for 'collective.recipe.shelloutput'.
Error: We don't have a distribution for collective.recipe.shelloutput
and can't install one in offline (no-install) mode.
While:
  Installing switch_softwaretype.

The cause was f936ea2c

Starting from nexedi/slapos.recipe.build@5e95d882 gitclone should have built-in support for submodules. Credit: Kirill.

The error was :

 Error: The following paths are already installed by other sections:
 {'/opt/slapgrid/4eb4146f38fc86ed2ad060217a1a95a6/bin/slapos-watchdog':
 'extra-eggs',
 '/opt/slapgrid/4eb4146f38fc86ed2ad060217a1a95a6/bin/networkcache-download':
 'slapos-cookbook',
 '/opt/slapgrid/4eb4146f38fc86ed2ad060217a1a95a6/bin/slapos':
 'extra-eggs',
 '/opt/slapgrid/4eb4146f38fc86ed2ad060217a1a95a6/bin/generate-signature-key':
 'slapos-cookbook',
 '/opt/slapgrid/4eb4146f38fc86ed2ad060217a1a95a6/bin/networkcache-upload':
 'slapos-cookbook'}

There was a typo and anyway it wouldn't have worked because of
nexedi/slapos.buildout!11

This is not used, and probably buggy