BS-7776
Only check custom connector definition
BS-7776
Only check custom connector definition unit tests
BS-1088: fix grammar

Conflicts:
	bundles/plugins/org.bonitasoft.studio.common/messages.properties
BS-7402: Add translations (missing just one sentence in Deutsh)
BS-1088: update messages to have more precise explanation why the name
is not a valid java identifier
BS-2896: add updated image in the installer
BS-2896: update messages in the installer
BS-7856: update logo and installer to 6.3.0
Merge branch 'master' into 'MasterBugFixing'
Merge remote-tracking branch 'origin/master' into MasterBugFixing
Merge branch 'master' into 'MasterBugFixing'
Merge branch 'master' into 'MasterBugFixing'
Merge branch 'MasterBugFixing' into 'master'