gui glue: script enable, constraint from/to
rename: getConstraintEnable to getConstraintEnabled
rename: _luaCode to _code & _luaConfig to _config
added code to insert hints

you can use the 'paste' button or double click (double click won't work for a single namespace without a function)
implemented file renaming & small improvements to file code
added code to check entered values
fixed compile
LuaConfig::fromSettings() fixed. Gui: authors field moved