Set up example
Reorganize a bit, add expand icon
Fix up some names
Buffer polygons on drag
Buffer lines
Fix stupid math
Add getCentroid to L.Polygon, center scaling action around it

Also include some beginnings (?) of polyline replacement
Little adjustments
Get rid of extra example images
Fix buffer->draw tool bug
Add bower.json, clean up package.json
First selenium test
Tweak tests to auto-start express server and use webdriverio
Add .travis.yml & switch tests to phantom
Add travis-ci icon to readme
Show buffer radius (currently in m) in tooltip while dragging
Show radius in meters/kilometers and feet/miles. Close #4
Scale circles on drag, fix #3
Prevent removal of polyline-based buffers on cancel after save

Fix #7
Increase test timeout for Travis-CI