Merge pull request #1 from corliss/dev

Merge fixes
Merge pull request #2 from corliss/dev

Refactor test app for reuse; use SolidBrush as a parameter for Graphics.Clear(); misc fixes.
FontFamily now is case insensitive on all platforms for standard family names
Mac: Use built-in font for cursive
Wpf: Fix mnemonic conversions for buttons/label
Gtk: Use Generator.AddTo static method to add handlers to allow use from external generators
Mac: Use ConvertSizeToBacking for 10.7+ instead of ConvertSizeToBase to avoid warning from OS X
Mac: Fix fullscreen option for OS X 10.6
Simplify Bitmap constructors to move Generator parameter to end with a null default value
Bitmap.Resize is renamed to a new Bitmap constructor, and is now implemented on all platforms with option to specify ImageInterpolation quality
Windows: Default interpolation is High instead of Default - default has very poor quality when shrinking images.
BitmapData (returned from Bitmap/ImageBitmap.Lock) is now disposable and should be disposed instead of calling Unlock ().  Makes using it much cleaner via using { } block.
Added BitmapData.Image, BitsPerPixel, and BytesPerPixel to easily calculate pixel position
Renamed R_, etc to Rb, Gb, Bb, Ab to get byte (0-255) values, and added a setter for each
Deprecated Color constructor with byte values in favour of Color.FromArgb to be more explicit
Moved DashStyles.Parse to DashStyle.Parse to be consistent with other Parse methods.
Added DashStyle.TryParse, and Parse now throws exception if it cannot be converted (to be consistent with how other TryParse/Parse methods work)
DashStyle.ToString and Parse now will convert non-standard styles to a comma-separated list of values where the first value is the offset and subsequent are the dashes
Wpf: Revert accidental removal of BitmapHandler.SetBitmap ()
Fixes for color updates
Implement Button.Image and Button.ImagePosition for all platforms
BOM/Line ending cleanup
Sync with picoe/develop
Merge pull request #6 from cwensley/corlissdev

Bitmap, Button, and other changes