Merge pull request #98 from patrickarlt/master

Sync up master
Merge pull request #99 from patrickarlt/gh-pages

sync build
no jeykll
rebuild
Merge branch 'master' of github.com:Esri/esri-leaflet
submodule url
update terraformer
delete demo (moved to gh-pages branch), update readme
update gitignore
add local gh-pages checkout to gitignore
consistancy in static attributions