Coder Review fixes, removal of unused code and depracted test frameworks, progress on ldap_authorization tests, and general code cleanup and documentation

Issue 1115704#comment-6551596.  This code is very unstable as refactoring is in progress.  Simpletests are broken also

trigger, event, synch action reworked to avoid ambiguity, clean up user interface, and separate ldap_user events from generic ldap contexts.  All simpltests working, but not tested beyond simpletests.  Ldap user configuration will need to be updated before using.  Some of this commit had to do with simplest fake server adjustments.

ldap user with basic function test coverage.  2.0 branch still not likely to be functional, just wanted to commit some of the progress

merge of 7.x-1.0 branch into 7.x-2.0 branch.  Only ldap provision module left in until it can be integrated into ldap_user