some initial changes to getfeatureinfo functionality
-support for "Scanned Map", "Paper Map", "ScannedMap" as DataType
values. Internally, OGP will use "ScannedMap"
-moved WMS GetFeatureInfo functionality from mapDiv.js to Backbone model
and view.

-added paging functionality to the feature info dialog for mulitple
features

-using JQuery UI tooltips for the feature info dialog for increased
responsiveness and readability.

-Created controller and supporting logic to convert WMS GetFeatureInfo
responses into JSON objects easily understandable by Backbone.js. The
abstraction will also allow easier addition of ArcGIS Server feature
info.

-Moved parsing of feature attribute definitions in the XML metadata to
server-side for speed and consistency

-refactored XML parsing to increase responsiveness and reuse.

-moved feature info views and models to appropriate directories

-cleanup of unused code
-bugfix: race condition in clearing the feature request queue
Merge pull request #7 from chrissbarnett/usgs_topos

Usgs topos