Merge pull request #1111 from tschneidereit/globals

Slight improvements to playerglobals building
Merge pull request #1112 from tschneidereit/globals

Implement lots of playerglobals classes in flash/display, plus a few in flash/system
Adds basic abc references for ASC issue
Implements SetIntervalTimer()
Implements Timer()
Use main asc.jar instead of ScriptCompiler
Implement LoaderInfo builtin
Include metadata in playerglobal.abc