Add name of project at top of license
fix container_traits with respect to boost::property_tree: Fixes#554
fix as_table with a vector of tuples (forward_get ignored constness): Fixes#552
fix implicitly convertible function pointers from classes using `call_detail`'s `lua_call_wrapper`
specificaly add documentation for working with `std::function`
new sol::filters (currently undocumented)
new gc tests, new plain_type tests
core abstractions over usertypes streamlined
SOL_STRINGS_ARE_NUMBERS triggers added
update single