first take on extent rotation
replace quaternion rotate with matrix rotate
relocated declaration of rotation matrix
Merge branch 'master' into rotateExtent
rotate positions before triangulation
Merge branch 'master' into rotateExtent
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
added more spec tests
shifted some things around in ExtentTessellator
Merge branch 'master' into rotateExtent

Conflicts:
	CHANGES.md
removed unnecessary allocations, added more tests
Merge pull request #762 from hpinkos/rotateExtent

Rotate extent