I've added some documentation to our project.
Each package in MLH now has package-info.java
which describes the purpose of the package.
Also, I moved both  FileConstants and UIConstants
to the Constants package.
Merge branch 'master' into mlh_yuri

Conflicts:
	MLH/src/android/mlh/bl/files/FileManager.java
	MLH/src/android/mlh/bl/plugins/PluginManager.java
	MLH/src/android/mlh/bl/tasks/Task.java
Merge pull request #31 from Sanyusha/mlh_yuri

I've added some documentation to our project.