Identity the maintainer of the Urho3D/Lua fork. Regenerate toluabind.c and toluabind.h using bootstrap process. Only call 'standard' script functions when they are available and be silent about it when they are not defined in the Lua script.

git-svn-id: http://urho3d.googlecode.com/svn/trunk@2623 3bd170d8-ddcf-f82c-f583-7a401ccf5608