Support alternative .android_secure location

Some devices (jewel, m8) have .android_secure at a non-standard
location. Allow a different partition to be specified as the home of
.android_secure using the fstab flag 'andsec'.

Using the /data/media variant of jewel as an example, recovery.fstab or
twrp.fstab could be edited like follows:

/external_sd  vfat  /dev/block/mmcblk1p1  flags=display="MicroSD";andsec

Note, this is NOT a method to move .android_secure in your ROM. Your ROM
must already write to this alternative location.

Change-Id: I3a6e4e63aaddb35870b79e80938b0f9c2c902443
Add additional search path for brightness

Change-Id: Ib1f032d87aafd7732d460caeca1e3ae6745a563d
Add support for actions triggered by key combination

Change-Id: I9dfa7de40229f00412d63fc9c1eb3a809a6eb2e6
Signed-off-by: Vojtech Bocek <vbocek@gmail.com>
Fix handling of storage with data/media vs data/media/0

Sometimes loading the values from the settings file may set the
storage path to /data/media when the proper path is /data/media/0
This commit will grab the storage path from the partition manager
to ensure that we are using the proper path.

Change-Id: Ibfd63125a2b9705319eb55b09c7e65391757bbc2
Make blank timer read brightness path from data manager

After implementing the find_file class, the blank timer code
needed to be updated to pull the brightness path from the data
manager instead of using the build flag to ensure that we use the
proper path for brightness.

Change-Id: I084983ac0bd68b2fcdd69b93c2d18e2862ba0c77
More MD5 verification error handling

Distinguish between skipped md5 verification cases:
 - .md5/.md5sum file not found
 - .md5/.md5sum file unreadable

Move MD5 error messages to twrpDigest

Change-Id: I912e3d9ebe64e78bed76eab8aa468d619b45972f
Only setup settings,andsec partitions if available

Change-Id: Iafedcec9e6ba368e29e32ab7a92d774cdd3f64e1
Add HTC charging LED support

Original implementation by Tom Hite, only slightly modified by Matt
Mower.

Change-Id: Ibc73bf04f122f5de1702f8beeccc468a9a1a2e95