add dev dependencies to package.json
Setting up test environment (Karma + Mocha) for Leaflet.Draw.
	-added Leaflet and testing dependencies to package.json
	-added spec folder + test libraries
	-added 'test' task to build.js and package.json
	-added karma config file (spec/karma.conf.js) and some miscellaneous spec helpers (leaflet-draw-include.js, leaflet-include.js, leaflet-deps.js)
get rid of unneeded leaflet related dependency files, just use the ones from node_modules
put karma.conf back into CI mode
Merge pull request #123 from iirvine/test_env

Test environment
Renaming method and cleaning up.
Add in support for double clicking to close a polygon. fixes #50
Change the tip text to reflect being able to double click to close. refs #50
Updated changelog.
Removing trailing whitespace
Update build
Unbind the marker events when remove it.
Ensuring that the onClick handler is correctly removed by passing in the context. fixes #132
Adding context to the event listener removals.
Updating Leaflet
Updating build
Update changelog