Fix 2 projects merge.
Working JTree in Linux and Mac.

In Windows can browse only Desktop.
Change FileFilter name and package.
Clean Up the Code...
Commit for issue 3
Commit for issue 3
Some design fixes for issue 3
Refactoring the code.
Refactoring the code.
Adds FileTreeCellRenderer
Added Common IO maven dependencies and theme classes moved to models package.
Merge branch 'issue3'

Conflicts:
	src/main/java/gr/teicm/mp/thefmanager/gui/MainForm.java
Merge clean up code.