Added a formula for installing mvnvm, the Maven Version Manager
version, hash, test, comments

* used today tar.gz,
* updated hash,
* changed test to copy the maven one + mvnvm.properties
* removed comments
using tar.gz instead of zip
remove empty line and use double quotes everywhere
depends on java!
version 0.1, removed java dependency
correct java dependency, more double quotes
force JAVA_HOME for test, remove version, add head
move to zip, update sha
addressing issues raised by @mikemcquaid
mvnvm: add 0.1 bottle.