[maven-release-plugin] prepare release facebook-oss-pom-5
back to development mode
remove mavanagaiata plugin

Turns out that this plugin generates bad information in many circumstances and
outright crashes in non-git repos. Remove for now, maybe added back later.
plugin updates
junit finally got its act together with 4.11 and above.
re-enable junit after 4.11
file encoding must be on arg line.
[maven-release-plugin] prepare release facebook-oss-pom-6
[maven-release-plugin] prepare for next development iteration