Change dependency versions to CDh5.1.2 versions.
Changes jvm target to 1.7.
Bumps version.
Adds lint:unchecked to scala settings.
Adds parquet dependencies.

This closes #26.
Changes logging dependencies to be provided.

This closes #27.
Formatting fixes.
Fixes travis.yml.
Deletes old bin/ci script.
Changes java version for the plugin and fixes deprecated warnings.
Adds build.sbt for sbt warnings.