[Libvirt-cim] [PATCH 00 of 17] #2 Updates for libcmpiutil API change

Fixed ElementCapabilities after Kaitlin's recent fix patch. Fixed the STREQ check that was accidentally removed in the last version. This refactors all of the necessary functions in libvirt-cim for the new API. Things only got cleaner, I think. I also found a substantial number of memory leaks in the process, which are fundamentally fixed by the new API which I think is a validation of it as "the right thing to do". All required changes should have been easily spotted by the compiler, but some testing would be good.