Add option to use default externs from Google Closure Compiler
Add option to use default externs from Google Closure Compiler
Merge branch 'master' of https://github.com/mbme/minify-maven-plugin

Conflicts:
	src/main/java/com/samaxes/maven/minify/plugin/ProcessJSFilesTask.java
fixed imports
Update Google Closure Compiler to v20140814
Add support for Closure Library dependencies sorting
Merge branch 'master' of https://github.com/mbme/minify-maven-plugin into default-externs
Merge branch 'default-externs'
Update version on docs for the next release
[maven-release-plugin] prepare release minify-maven-plugin-1.7.4
[maven-release-plugin] prepare for next development iteration
Allow setting closure's warning levels in the minify goal.