Merge pull request #71 from alaframboise/master

Fixed featurelayer popup code and retina toggling
Merge pull request #76 from patrickarlt/master

proper copyright and readme shout out for sanborn
allow options to be passed to layer#identify
add demo for identify options
fix errors in IE 8
Merge pull request #80 from scooterw/ie_fixes

fix errors in IE 8
Merge pull request #78 from scooterw/identify_options

Add ability to pass options object into layer#identify
rebuild and update demos
Merge pull request #81 from patrickarlt/master

Rebuild and update demos
Merge pull request #82 from patrickarlt/gh-pages

Sync up github pages branch