Added init condition code gen functions for loading mutable init conditions.
corrected include macro gaurd in places.
moved get/set values to class methods in LLVMExecutableModel,
added error notifications when depdenent values are attempted to be modified.
get/set generated functions for mutable init comp volumes and init conc.
fixed mem leaks
improved getInfo / print so LLVMExecutableModel displays better.
generators for mutable init cond functions.
fixed names of LLVMModelData enum fields.
python binding to new mutable init cond methods.