Revert "Revert "Add storage selection (2/2)""

This reverts commit 27f80c30596362e2f9a3e2045068fdd6c2f9a168.
Fix activity stack when restarting the screen nail

We were stacking multiple activities, resulting in the need for multiple
destructions (back key events) when killing the camera app

Change-Id: I7ec61c517d25f7e47baf47fcd1696f987631c344
Gallery : Filter picasa specific options

Remove menu options that don't serve a purpose due to their dependency
on picasa support being built in.

Also add in the help url to stay in sync with GalleryGoogle.

https://jira.cyanogenmod.org/browse/CYAN-1329

Change-Id: Ie75b839ec9b30a5a934477e92523803239a238e3
Merge branch 'cm-10.1' of https://github.com/CyanogenMod/android_packages_apps_Gallery2 into DJL10.1