Merge pull request #148 from sbesson/travismerge_parse

Allow scc travis-merge to search dependencies in description/comments
Allow empty summary commit at the end of rmerge()

This should allow an empty merge summary commit to be created if:
- there is no submodule in the repository
- there are submodules but none of them is updated during the merge operation
merge master -D org: PR 149 (Allow empty summary commit at the end of rmerge())