Refactored loading of context data and dwarf binary data into functions that are now called by the atosl_symbolicate and atosl_load_guids.  This is to reduce code duplication.
Initial integration of 64-bit architecture support functional.
Altered atosl_load_guid to return 0 if the GUID is succesfully written to the buffer.  PReviously, was returning the value produces by snprintf().