* add game_get_by_name Lua API function
* refactoring for lua_handle_command
add handle_game_list Lua function (feature to sort game list from Lua) https://github.com/HarpyWar/pvpgn/issues/35
Lua function handle_user_icon (feature to override user icon from Lua)
* add server_handle_rehash to Lua
* function in Lua to save GHost state when rehash
* command /chost to allow host custom maps with GHost https://github.com/HarpyWar/pvpgn/commit/f6a20495028d041c75ba7cd74a4eb92efdd2af37#commitcomment-7207326
* add help for /host and /chost