samba36: set the correct protocol for SMB1 mode (default)
samba36: Parallel build support; still compile Samba 3.5.8 since we are unable to port the AiCloud proprietary changes from 3.5.8 to 3.6.24.  AiCloud should only use the generated libsmbclient.
samba36: Replicate Samba 3.5.8's Makefile settings instead of OpenWRT's
Remove samba 3.6.13 that was temporarily present in last year's GPL but has since been dropped by Asus
samba36: Go for broke, and compile Samba 3.6 with highest level of optimization to reduce the performance impact of the upgrade.  Size difference isn't as bad as expected.