Added save state support to all machine components.
Switched from xml serialization to binary serialization.
Refactored audio service for performance.
Bumped machine version to 0.9.0 for next release.
Miscellaneous cosmetic or minor changes.
Modified to clear audio buffer on reset.
Refactored keyboard services and unified key bindings where practical.
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Added rudimentary UI to Silverlight and WPF platforms to enable disk selection at runtime.
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extra : convert_revision : svn%3Affd33b8c-2492-42e0-bdc5-587b920b7d6d/trunk%4024459