Development: 

Several bugs in the helper functions.  

khash is now the default hashmap.  klib is a git subtree. no more c++ in python bindings.

memory management cleanup to the point of redundancy. Issue with cleanUp call fixed, issues with sizeof in libprimer3. valgrind verified. 

valgrind --tool=memcheck --suppressions=valgrind-python.supp --leak-check=full python primer3_test.py