Initial commit of polygon orthogonalization.

Currently doesn't save unless you move a vertex manually first.
Got the orthogonalized geometry push to the server by manually calling the drag handles on the points in the polygon being edited…  There is some duplication of code, but can make it nice later
Merge pull request #1 from kzusy/orthogonalization

Got the orthogonalized geometry push to the server by manually calling t...
Merge branch 'orthogonalization'

Conflicts:
	webapp/src/gxp/script/widgets/FeatureEditPanel.js