* Merged latest code from the master branch.
* Added lockdownd_start_service_with_escrow_bag, and updated idevicebackup2 to use it.
* Removed some unused GnuTLS code.
* Fixed "pre-configured" pairing issues.
Merge branch 'master' of https://github.com/MCE-KobyBo/libimobiledevice

Conflicts:
	common/userpref.c
	libimobiledevice.vcxproj