RESTEASY-863
Merge pull request #404 from liweinan/RESTEASY-863

RESTEASY-863
managed version in bom
Merge pull request #417 from liweinan/resteasy-bom-proj-ver-branch23

Change version to variable in 'resteasy-bom' (This is for Branch_2_3)
Merge remote-tracking branch 'official/Branch_2_3' into Branch_2_3