Add international feet to projection units
Handle projections in feet in scale line control
Fixing extent check for undefined extents.

Thanks @marcjansen for spotting this. To make the epsg-4326
example work, I also had to change the WMS version to 1.1.1.
Pretty print the whitespace build
Merge pull request #269 from ahocevar/wms-extent

Fixing extent check for undefined extents. r=@elemoine
remove unused code from epsg-4326 example
zoomFactor defaults to 2
View2D zoom may animate pan
MouseWheelZoom interaction animates zoom
Debounce mousewheel zoom events
Change View2D function names

Also make the TouchZoom interaction no longer use a private View2D function.
Add a rotateNoConstraint View2D method
Make TouchRotate interaction use rotateNoConstraint
Merge pull request #271 from bartvde/epsg4326example

remove unused code from epsg-4326 example
Correct Stamen source
Add Stamen example
Add a snapToZero rotation constraint
Do not apply rotation constraint while rotating

This is on par to what the TouchRotate interaction does.
Make animating rotation possible
Animate rotation when releasing mouse or fingers