Added the IDE category and Eclipse Luna framework.
Changes motivated by comments at https://github.com/didrocks/ubuntu-developer-tools-center/pull/26.
We detect 'i686' as a 32-bit architecture.
Leave config marking to the BaseInstaller.
Added large tests for IDE/Eclipse.
Eclipse will install its icon to XDG_DATA_DIR.
Some additional logging in tools.py.
Leave the icon file in the Eclipse directory.
Small test changes.
Only keep relevant test

* The other tests will be covered in a more generic manner without asking for
  redownloading Eclipse
Fix pep8
Merge pull request #1 from didrocks/eclipse-luna

Eclipse luna tests removal
Removed some unused imports.
Style fix.
Fix a typo: Developement -> Development
Move domain specific content server to subdir

* Move fake content for server to a subdir corresponding to the hostname domain
* Enable the local server in container to not have certificate
Merge branch 'master' into eclipse-luna
Typo: Developement -> Development in fr.po
Typo: Developement -> Development in de.po
Typo: Developement -> Development in te.po
Typo: Developement -> Development in es.po
Typo: Developement -> Development in zh_HK.po
Typo: Developement -> Development in eu.po
Typo: Developement -> Development in zh_CN.po
Typo: Developement -> Development in tr.po