KRACOEUS-6956 : move ProposalDevelopmentAction.java to propdev core.
KRACOEUS-6956 : move ProposalDevelopmentProposalAction.java  to propdev core.
KRACOEUS-6956 : move ProposalDevelopmentUtils.java  to propdev core.
KRACOEUS-6956 : move ProposalDevelopmentControllerBase.java  to propdev core.
Merge pull request #136 from yyuan1/0401_repack_propdev_2

0401 repack propdev 2