Revert "add more logoutput to ExtendedSurfaceView"

This reverts commit 024ae7c.

put previewsize only for zte devices

hide raw10 seems not supported by the dngconverter

fix histogram gets activated when it was active and get deacivated an…

…d a picture was taken

incrase histogramm update speed

code clean up and fix gpsprovider

changed helpoverlay and moved textbox into a scrollview for the posse…

…bility to add more informations

fixup picturemodule

fix #11