#GH383-configure branch

Add the rebase checkBox and functionality
Add ConfigConstants
#383 - Merge remote-tracking branch
'origin/GH383-configure-branch-review'

Conflicts:
	org.flowerplatform.flex_client.team.git/.flexLibProperties
	org.flowerplatform.resources/public-resources/messages/org_flowerplatform_resources.properties
	org.flowerplatform.team.git/src/org/flowerplatform/team/git/GitService.java