Merge pull request #235 from OpenGeoscience/box-selection-plane

Added a d3 plane feature and visible rectangle for selections
Merge pull request #232 from OpenGeoscience/bower-install

Installing web deps with bower
Merge pull request #229 from OpenGeoscience/feature-style-constants

Update line api and support constant style values
Made tile urls customizeable with a formatting function
Merge branch 'custom-tile-urls' into grunt-example-build
Use white background for point example
Moved ui to geo.gui
Merge branch 'ui-controls' into grunt-example-build
Added an empty file for global example code