MegaGlest v3.13.0

• important sounds like "attack alarm" are always played
• display build/morph/upgrade time
• new AI tag for units(buildings) which allows fake size for buildings
  while placing them
• much better error handling and messages especially for modders and xml-related problems
• fix unwanted double event for some keys ( like alt+enter )
• map filter option for game setup on headless server
• option to select/command multiple buildings of same type ( uniform-selection )
• major cross platform OOS fix which especially showed up quite often when playing without
  fog of war
• you must proof basic game knowledge before you can play online by winning a special scenario
• less visible parts of black squares while rendering cliffs
• possibility to let units spawn units on death
• improved AI behavior per faction ( mostly magic )