add Dojo AMD map example page

map sets chart url once feature service loads.

seems like bower components need to live under app/bower_components,
so I pointed .bowerrc there. Also there is a app/app/bower_components
checked in, not sure if that needs to be there.
added .git ignore for npm and bower components
Merge pull request #1 from tomwayson/dojo

add Dojo AMD map example page