Blocked cached Google Music files from nandroid

Patchset 1) initial patch

Change-Id: I76719bdd90be716f1beaeac293c5158eddf3a240
6.0.2.9

Change-Id: Ib39519bb312c234b1092c067957c50d6c522ba49
Fix segfault with dead symlinks

If a symlink pointed to a non-existing directory, the path navigation
menu would crash when attempting to free the structs

Change-Id: Icd6e7dcc711645f82c5ac014fcacd506b95a2fc2