Superuser 4.3 fixes.

Add support for su daemon to work around SELinux policies
and new capset on zygote/dalvik.

Change-Id: I2bdc7ef61dc17430a878e13dd098e6d0c004ddb2
Fix build

Change-Id: I2f65d0128ef0b885603caf1100a194626d04cbed
cleanups and sanity check string length

Change-Id: I17be8f06edd5ec507ab9b0a14cf305be75afc067
Add missing NULL sentinel.

Change-Id: I95b86d8e60d54a54280dae89ab93ff7eb322fe18
Add support for su daemon installation and detection in recovery zip.

Change-Id: I09f2d2be61c9e8c5dec755de05227d41e08e4de8
install-recovery.sh packaging

Change-Id: I7f8fb1295b8564d33f3e7a04ab622a9075075a50
Merge remote-tracking branch 'github/cm-10.1' into cm-10.2
Rev the su binary version.
Add --daemon documentation.
Only allow recovery install on 4.3+.

Change-Id: I08624fd435a027c515442e2eef7a45bb7f41d666