Merge pull request #1150 from tschneidereit/master

Fixes to AS2 MovieClipLoader event dispatching
Moves avm1lib files in one place
Fixes update-flash-refs utils
Merge pull request #1152 from yurydelendik/move-avm1lib

Move avm1lib into src/
Merge pull request #1153 from tschneidereit/master

Remove json2.js
Merge pull request #1154 from tschneidereit/master

Cleanup and optimizations in avm2/xml.js
Fix avm1 setInterval

With test!