Move ABC parser to its own directory.
Don't import ABC classes in the top level.
Add disassembler missing imports.
More missing imports.
Merge branch 'traits' into nat
Disable easel frame selection to make it easier to debug mouse events.
Introduce CLI interface.

Create two build targets for Player (with and without GFX references).
Create shell build target, this will let you run SWFs and ABCs from the command line.
Clean up some global references, and made shell execute .abcs.
Update references.
Move shell to its own directory.
Merge pull request #1482 from mbebenita/avx

Cleaning up build system.