fixed PushCellByRef and PushFloatByRef in the varargs case where it wouldn't set the pushed type
fixed the BindNatives functions not setting the BOUND flag thus making the JIT not exec the natives
done the rest of tests with forwards, only left to do string varargs
--HG--
extra : convert_revision : svn%3A39bc706e-5318-0410-9160-8a85361fbb7c/trunk%40197
removed copy back cruft since it's no longer needed
removed PushCells() from API requirements, not needed
adjusted documentation and added TODO list to ForwardSys.cpp
various internal improvements
--HG--
extra : convert_revision : svn%3A39bc706e-5318-0410-9160-8a85361fbb7c/trunk%40188
Implemented and did basic tests on new IPluginFunction type
Split function types into a separate file
--HG--
extra : convert_revision : svn%3A39bc706e-5318-0410-9160-8a85361fbb7c/trunk%40182
