Updated all composer dependencies
Added PHP 5.6 to travis ci
Renamed ExportCommand to CrawlCommand
Added new field "state" of a Project
gerrie_files.deletions can be signed
New information gerrie_patchset.is_draft will be now stored
isCurrentPatchSet during dependsOn of a changeset can be an empty string
First version to import file comments :)
Removed update path for filecomments
Fixed "Data too long for column 'commit_message'" during crawling wikimedia
Changed intends to spaces
Added (empty) "How to start" chapter