tree 9c1013f0f8e1a980d8e55e13f3c2d3d95a83b1f5
parent 27a0d2b2abbf4a471dd63d07d56e91dfc6eaba34
author Tom Finegan <tomfinegan@google.com> 1329521816 -0500
committer Tom Finegan <tomfinegan@google.com> 1330040601 -0500

Add update dmgs to dmg build script.

Also adds some simple optional command line args:
- passing no params or passing "all" will build all dmg files.
- passing "webm" will build the webm updater dmg.
- passing "xiph" will build the xiphqt updater dmg.

Change-Id: I1d1e84f605f767ab589ad908baead48d297623c8