CAS-1462: Upgrade Spring/SWF dependencies to 4.x and 2.3.3

Had to slightly adjust the xml syntax in some areas, but everything else seems to work just fine as it did. 
It has not, yes. I was testing the flow and jsp pages, and noticed the JS error on mime-type restrictions. The screen was rendering blank for me, so I switched the link to be the correct one. I later realized the blank screen that I experiences had nothing to do with the upgrade or the JS error, but was mostly a chrome caching issue, but I kept the fix there anyway.