There is the API manual in the docs folder that addresses the mc. namespace/library/table. As for the wx. stuff, that is wxLUA and the documentation is on that web site. However, they kind of expect you to know the wxWidgets API or use the wxWidgets C/C++ API docs and "translate" the C/C++ functions to the LUA syntax. The wxWidgets API is expansive and there is no possible way we would ever document it. Unless you are writing wizards or GUI stuff, there really isn't any need for the wx. stuff. But it is there if you want to get crafty and don't mind a learning curve.
Steve