Added Apache License
Added maven plugin to build process for easier testing (adds the install task)
Increased the version to the next snapshot version
Created ability to configure jvmArgs in the build which allows for easier customization.
Added the ability to specify version of gems that are being installed
Added the ability to configure the jrubyVersion in the standard extension
Added documentation for the new features
Merge branch 'jvmArgs' of https://github.com/munnja001/gradle-compass into munnja001-jvmArgs

Conflicts:
	src/main/groovy/org/gradle/plugins/compass/CompassExtension.groovy
	src/main/groovy/org/gradle/plugins/compass/CompassPlugin.groovy
	src/main/groovy/org/gradle/plugins/compass/CompassTask.groovy
	src/main/groovy/org/gradle/plugins/compass/InstallGems.groovy
	src/main/groovy/org/gradle/plugins/compass/JRubyTask.groovy