add changelog tool
[maven-release-plugin] prepare release parquet-1.2.8
[maven-release-plugin] prepare for next development iteration
Merge branch 'master' of https://github.com/Parquet/parquet-mr
make cascading a provided dependency
add cascading dependency to scrooge, and add cascading.version propertie in project pom
Merge pull request #236 from Parquet/make_cascading_a_provided_dependency

Make cascading a provided dependency
Merge pull request #229 from Parquet/changelog_tool

add changelog tool