resilient: adds a promise to test integrity and the status of the last run of the feeds generated by notifier scripts

Instead, of that, the notifier wrappers will run the scripts several more times in case of failures
This is better than silent failures.

Otherwise, slaprunner-supervisord crashes because of unknown paths

Also, the instance-runner-export template becomes a Jinja template

This commit is a fix for 8787716d. It allows to get the random cron string
generated previously through parameters, and not reading manually .installed.cfg.

This message is also available via a promise

If slapgrid fails, print the end of instance/software log in resilient log.
Now an the exit-code-file is always written, even if runner-importer fails.
The promise on this file gives the URL where the resilient log can
be accessed, to simplify the debugging

*  Includes a new recipe to get a random time
*  Moves generatepassword and generatemac into random.py
*  Fixes up some recipe, as the creation of a "random.py" file may collide
   with the import of the standard library random

This reverts commit 2b0c61d9.

Reading the .installed.cfg file is not the correct way of storing values. The publish_early
recipe should be used instead

This reverts commit 8787716d.

repositories if configured are public. Thus such a check will by design fail.

@seb, @rafael  please review. I tested this and it works.

/reviewed-on nexedi/slapos!114

Then we'll upgrade setuptools for everyone at the same time as we switch to
zc.buildout 2.x

Same issue of avoiding publishing private code, this time with nothing published by default.

Ivan, can you quickly try this apache config and give your opinion if it acceptable that you add .htaccess in the code to be tested ?

/cc @jm @Tyagov @rafael

/reviewed-on nexedi/slapos!113

This reverts commit 292be60ff42edc2ce57f2e6701ad283c18e9772b because of
a regression in tesseract > 3.02:
  https://github.com/tesseract-ocr/tesseract/issues/360#issuecomment-258775303

Related Unit Tests failures:
  * test_PDFDocument_asTextConversion (testDms.TestDocument)
  * test_MonochromeImageResize (testDms.TestDocument)
  * test_CMYKImageTextContent (testDms.TestDocument)
  => AssertionError: 'ERP5 is a free software\n\n' != 'ERPS is a free software.\n\n'

Tested versions:
  * 3.04.01 (leptnonica: 1.73): NOK
  * 3.03.03 (leptonica: 1.71): NOK
  * 3.03-rc1 (leptonica: 1.71): NOK
  * 3.02.01 (leptonica: 1.69): OK
  * 3.02 (leptonica: 1.71): OK

…se default way to provide backwards compatability.

This commit fixes backwards compatibility after a regressions introduced in !109.

Following test results prove it works:

https://nexedi.erp5.net/test_result_module/20161104-7A7E676

https://nexedi.erp5.net/test_result_module/20161104-15D828A5

/reviewed-on nexedi/slapos!112

While:
  Installing lxml-python.

An internal error occurred due to a bug in either zc.buildout or in a
recipe being used:
Traceback (most recent call last):
  File "/mnt/buildout/eggs/zc.buildout-2.5.2+slapos005-py2.7.egg/zc/buildout/buildout.py", line 2211, in main
    getattr(buildout, command)(args)
  File "/mnt/buildout/eggs/zc.buildout-2.5.2+slapos005-py2.7.egg/zc/buildout/buildout.py", line 637, in install
    self._install_parts(install_args)
  File "/mnt/buildout/eggs/zc.buildout-2.5.2+slapos005-py2.7.egg/zc/buildout/buildout.py", line 806, in _install_parts
    installed_files = self[part]._call(recipe.install)
  File "/mnt/buildout/eggs/zc.buildout-2.5.2+slapos005-py2.7.egg/zc/buildout/buildout.py", line 1579, in _call
    return f()
  File "/home/slapos/software/eggs/zc.recipe.egg-1.3.2.post5-py2.7.egg/zc/recipe/egg/custom.py", line 49, in install
    return self._install()
  File "/home/slapos/software/eggs/zc.recipe.egg-1.3.2.post5-py2.7.egg/zc/recipe/egg/custom.py", line 161, in _install
    newest=self.newest, patch_dict=patch_dict)
  File "/mnt/buildout/eggs/zc.buildout-2.5.2+slapos005-py2.7.egg/zc/buildout/easy_install.py", line 1061, in build
    assert executable == sys.executable, (executable, sys.executable)
AssertionError: ('/home/slapos/software/parts/python2.7/bin/python2.7', '/usr/bin/python')

Same as for commit fcb6a81d,
but for the build of the 'hellorina' SR inside the VM.

Includes work of Douglas in !109
as long as improvements on it.


/reviewed-on !110

We want it next to eggs/parts/..., not in slapos.git/software/build-rina/

  This is required to support aarch64 systems.
  The edition of PYTHON_LIBS is probably wrong but it what made it work. In future, it would be
  better clean up it.