first take on extent rotation
replace quaternion rotate with matrix rotate
relocated declaration of rotation matrix
Merge branch 'master' into rotateExtent
Rename FullscreenWidget to FullscreenButton and associated files

Also add specs for the widget, which cover as much as we can since we can't actually use Fullscreen mode in tests.
rotate positions before triangulation
Merge branch 'master' into rotateExtent
Fire cut at HomeButton widget

Also clean up some other widget code and remove unecessary public properties.
HomeButton and createCommand specs.
Update CHANGES.
Fix CSS
corrected northwest corner rotation
don't render extent if rotation makes it go over poles
pushed rotation parameter to polygon configExtent
clean up documentation
missing asterisk
updated polygon sandcastle example,
updated CHANGES.md
fixed minor error in extent tessellator, and added spec tests
Fixes after review.
Merge branch 'master' into homeButton
added more spec tests
shifted some things around in ExtentTessellator