Preventing a continuously growing stack top and inevitable program termination.
Also, commonize the error handling to live on the engine side.
git-svn-id: https://svn.eduke32.com/eduke32@3352 1a8010ca-5511-0410-912e-c29ae57300e0
On the engine side (functions starting with L_), there are now the basic
parts like state creation and running code from strings and files.
The game and editor can add to that by e.g. loading whatever they please
into the state. Their functions start with El_ and Em_, respectively.
The Lua scripts still reside in source/lunatic, even for the common ones.
This is because they will be embedded into the binaries as bytecode or
compressed source eventually, so their location on disk will be irrelevant.
git-svn-id: https://svn.eduke32.com/eduke32@3148 1a8010ca-5511-0410-912e-c29ae57300e0
