Add -nohess, thread issue.
Should be nullptr after reinitialize()
Added tests for adlist_ptr::reinitialize to set adlist_ptr class to initial state.
Test cases for msimple and modifications to get threading going...
Add msimple tests.
Intermediate branch for merging threaded2 to trunk
Add more unit tests for dlist and ad_comm
Move adstring_array test to gtests.
Opps forgot test.