OSMF SVN

Adding missing reference to the VAST library.

Fixing FM-115 by having the DefaultLayoutRenderer set X and Y to 0 by default.

Fixing FM-113 by adding a null check.

Adding readme file for the MAST sample.

Updating the MAST plugin integration test.

Extending regions unit tests some more.

Remove unnecessary imports that will interfere with ASDoc compilation.

Extending layout and regions unit tests.

Fix bug FM-72, PluginManager will dispatch MediaErrorEvent when the plugin has a version mismatch. The SamplePlugin project is modified to show the usage of MediaErrorEvent.

Commenting out offending IE test.