Merge pull request #149 from sbesson/146_commit_message

Allow empty summary commit at the end of rmerge()
Allow to pass sign to scc tag-release
merge master -D org: PR 151 (Allow to pass sign to scc tag-release)
merge master -D org

Repository: openmicroscopy/snoopycrimecop
Already up-to-date.

Merged PRs:
  # PR 151 sbesson 'Allow to pass sign to scc tag-release'

Generated by SCC-merge#278 (http://ci.openmicroscopy.org/job/SCC-merge/278/)