only delete the original javaCompile action, preserving doFirst() and doLast()

This is *very* hackey, but there is no gradle api for only getting the orignal
action of a task. At least it will fail fast if the class name ever changes.
may help with #65, #73
added new plugin name and deprecated old one, updated default retrolambda version
Merge branch 'develop'
updated README/CHANGELOG
bump plugin version to prepare for release
Merge branch 'develop'

Conflicts:
	README.md
set android gradle plugin dependency to 1.0.0
Merge branch 'develop'