Add LRO_SSLVERIFYPEER and LRO_SSLVERIFYHOST options (RhBug: 1093014)
Add missing support for Handle Mirror Failure Callback (hmfcb) while downloading repomd.xml (related to RhBug: 1093014)
Fix SIGSEGV in py_set_debug_log_handler()
Fix some issues which were found by coverity scan