The WeakMap shim should use the built-in version if available.

Firefox and IE11 have built-in support, so we can skip all this workaround junk.  Also comment out some parts of the shim that we don't actually need (NodeJS & global versions, and a createStorage helper function).
Improve MIME type support in server.

Move MIME types to a text file to make it easier to manage.  Add proper MIME type for GeoJSON.
Update the Widget examples to use the Cesium prefix.
Merge pull request #1008 from AnalyticalGraphicsInc/improveMimeTypeInServer

Improve MIME type support in server.
Merge pull request #1009 from AnalyticalGraphicsInc/drag-drop-faq

Update the Widget examples to use the Cesium prefix
Convert JSHint settings to a .jshintrc file.

The new version of the Eclipse JSHint plugin, 0.9.8, now stores settings in this more standard format.
Merge pull request #1012 from AnalyticalGraphicsInc/updateJSHintOptions

Convert JSHint settings to a .jshintrc file.
Use less obtrusive comments to make it easier to diff in the future.
Upgrade Knockout from version 2.2.1 to 2.3.0.
Merge pull request #1006 from AnalyticalGraphicsInc/fixWeakmapShim

The WeakMap shim should use the built-in version if available.
Merge pull request #1013 from AnalyticalGraphicsInc/upgradeKnockout

Upgrade Knockout from version 2.2.1 to 2.3.0.
Merge branch 'master' into dataSourceBrowser