[maven-release-plugin] prepare for next development iteration
Add detection of changes in output directory
change the name of the info file for output; don't include metadata as output
include output checking and refreshing in processing
[maven-release-plugin] prepare release protobuf-maven-plugin-0.9.0
[maven-release-plugin] prepare for next development iteration
Merge pull request #1 from osbolab/develop

Version 0.9.0: incremental builds (all or nothing)