Added an addon for testing the Lua API.
Created source directory for holding various API classes and functions.
Added config variable ImprovedTodoTaskPattern. This pattern works better but needs for testing.
Added new config code that uses lua tables for configuration variables. Code is not active at the moment though.
Removed printHelp function that was left behind of commandline refactor.
LuaConfig class added.
Added getConfigPattern to TodoFileReader. This uses the new class LuaConfig to get the regex pattern.
Renamed lua to lua_ in LuaAddon to match the conventions of other classes.
Changed back lua_ in dirEntries funtion call.