handle system wide mount points
fix path to OC_Mount_Config
some performance improvements, check for system wide mounts only once while writing share keys
move isSystemWideMountPoint() to util.php
handle rename correctly for system wide mounts
delete file keys from the correct location
always return normalized path
del share keys from correct location
only escape glob pattern
make trash bin aware of system wide mounts with respect to encryption keys
only check for external mount points if the external storage app is enabled
fix getUidAndFilename() test
added helper function to escape glob pattern

Conflicts:

	apps/files_encryption/lib/helper.php
remove wrong closing bracket