--- 1.5.1 ---
New Features:
 - Chapel shims
Improvements:
 - Compiles under Cygwin
 - Better OpenMP nested loop behavior (more efficient barriers)
 - Use memory affinity interface in hwloc (if available)
 - Better CPU affinity behavior for non-default shepherd counts
Bugfixes:
 - Better behavior when void functions are used as syncvar-returning threads
 - Pthread_id() now does not change between qthread_initialize() and qthread_finalize()
 - Affinity of calling thread restored during qthread_finalize()