Mutil 1.822.2 released

CHANGES
- Fixed ignored #mutil# prefix in msum during -c
- Fixed compiler warnings for gnutls_transport_set_ptr/LOV_MAX_STRIPE_COUNT
- Removed references to gnutls-extra since no longer exists in recent gnutls
- Removed note about hash leaf size adjustment during some cases
- Removed --as-needed from ld args since not always supported (e.g. OSX)
- Added workarounds when clock_gettime does not exist (e.g. OSX)
- Changed to System V semaphores since POSIX semaphores broken on OSX
- Now supports OSX (note that default gcc 4.2.1 does not support OpenMP)