checkout packages in dev area which are newly added in the BigProducts/*/BuildFile.xml
Allow specifying --no-commit as an option.
Add support for -s and -X when merging.
Merge pull request #69 from ktf/pass-options

Pass options to underlying merge command
Merge pull request #68 from smuzaffar/master

checkout packages in dev area which are newly added in the BigProducts/*/BuildFile.xml
git-cms-addpkg: clean up unused variables
limit the check of the local tree to the index (staged but not committed files)
Merge pull request #70 from fwyzard/check-status-before-merge-v3

Check status before merge v3