Update to ext-js 3.4.0

Clean upgrade to 3.4.0 with no real changes involved. I replaced the full
extjs install with a trimdown of only the essential. Also moved from the
examples/ directory are ux/DataViewTransition.js and the fam icon set.

IE9 support is the big item in this release: http://dev.sencha.com/deploy/ext-3.4.0/release-notes.html