Add a mouse position directive

This directive wraps an ol3 mouse position control.
Use the mouse position directive
Remove the coordXY filter
Change control projection
Remove projection params from ol.control.MousePosition constructor
Use map.addControl
Change the coordinate format on projection change
Upgrade ol.js and ol-whitespace.js
Fix indent, remove unused variable
Rely on ol-whitespace.js for script autoloading
Rename closure/base.js to closure-base.js
Merge pull request #22 from geoadmin/dev_mousepositioncontrol

Add a mouse position directive