New option to check changes from Gerrit and trigger missed patchset created events.
Bug fix: Support to use silentMode with check missed patches property.
Refactored check missed patches property.

Fetches only once every needed project from Gerrit server.
Refactored Trigger missed patches property
TriggerMissedPatches class name changed to TriggerNotReviewedPatches
Bug fix: Triggers only selected unreviewed changes
Removed useless logs from check unreviewed patches property.
Non-reviewed patch support refactored.
Refactored non-reviewed patches property to implement a GerritListener.
Refactored Gerrit project list to use iterators.
Added GerritProjectList tests.
Checking unreviewed patches licenses updated
Merge branches 'master' and 'gitMaster'
Fixed the previous merge
Merge pull request #65 from Jonux/master

New option to check unreviewed patchsets from Gerrit