Change extjs 4.1.1 to pull from TNC CDN

The Sencha CDN for 4.1.1 stopped working and this broke every TNC site.
Track inner exception to prevent compiler warning

Creating the build scripts exposed a compiler warning.  Updated to include
the unused variable as the inner exception.

The compile portion of the build script lists warnings, so this reduces
the noise of the script a bit.
Merge pull request #274 from kdeloach/topic/cdn-hotfix

Change extjs 4.1.1 to pull from TNC CDN
Merge pull request #283 from mmcfarland/topic/fix-warnings

Track inner exception to prevent compiler warning
Update to proper URL for claro.css

The previous link was incorrect.