initial changes

thanks again to D1FE for this awesome file manager
this commit is just to change minor things like icon
which fits better as well very minor cleanup and change
action drawer xda string into thanks for the developer

TODo next days....main view dialogs need instance handling.
here and there smaller minor things

Change-Id: I74955c3281455d1bf0acbc8dd84ae4fb86a4f1e4