Sanity check of buttons length before calling indexes
Merge pull request #60 from yohanboniface/no_buttons

Sanity check of buttons length before calling indexes
Update CHANGELOG.md
Remove unused variables.
Removing more unused variables.
Adding check to see if Draw and Edit toolbars exist before initializing them.
Moving copyright to it's own file.
Updating build script to allow partial building of plugin.
Update TODO.
Including and renaming L.Handler.PolyEdit from leaflet core. fixes #69
Update TODO.
Added example for using just the edit handlers to manually place vectors in edit mode.
Renamed examples folder and basic example.
Refactored dependencies as the handlers do not rely on the extensions.
Update build.
Add core file to include the version number.
Update build.
Added ability to update the draw handlers options after initialization.
Update TODO.
Merge remote-tracking branch 'origin/master' into 0.2

Conflicts:
	src/draw/Control.Draw.js