Add a class SlapConfigParser which overrite ConfigParser.write method to fix parse problem when
configuration like:
[section]
foo += bar

is included in buildout file. softwaretype recipe will generate
buildout file with foo + = bar because ConfigParser doesn't reconize +=
delimiter and read key as "foo +", value as "bar".
Then ConfigParser.write method generate

[section]
foo + = bar
...

This is invalid with buildout version 2

/reviewed-on !100

Buildout expects all needed sections to have been accessed during the
sectoin initialisation pass. It does not like having them accessed during
the "install" pass, and emits a very cryptic error:
  While:
    Installing publish.
  Error: Missing option: publish-early:__buildout_signature__

The recipe userinfo already provides this information

This reverts commit fd5f808b.

/reviewed-on !82

  The software release was re-written to use jinja2 templates

  If required older versions might have the code archive.

This causes Cloudooo to not listen anymore.

/reviewed-on !75

Define a simple cache implementation using a Dict (Singleton) to prevent call registerComputerPartition
  multiple times over the sections.

/reviewed-on !74

  When create a wrapper for etc/service/my-wrapper placing the 2 files
  at the same folder, cause one duplication at the files added to supervisord, so
  always place the python script wrapper at the bin folder of the buildout.

  Ensure the certificates provided by the user actually valid and match, otherwise prevent it write bad certificates.