Changes the way modules are handled + allows to find modules by name
General cleanup
Merge branch 'modulesmgmt'
Access to modules easier this way
move more code to the Modules class
Modules class is now an iterable
Add unit tests for SyncModules
Add error message when a regexp is not correct in a SyncModule
Merge branch 'master' of https://github.com/pipoteam/pipobot
Only try to import sphinx if we want to build the doc