* updated docs --HG-- extra : convert_revision : svn%3Aeebe1cee-a9af-4fe4-bd26-ad572b19c5ab/trunk%4039
* minor tweaks in alock_util.c --HG-- extra : convert_revision : svn%3Aeebe1cee-a9af-4fe4-bd26-ad572b19c5ab/trunk%4033
* minor tweaks to buildsystem: - added scons_alock.py to hold some routines we use - adjusting the permissions of created files --HG-- extra : convert_revision : svn%3Aeebe1cee-a9af-4fe4-bd26-ad572b19c5ab/trunk%4030