Update urls for some js libs in static/

jQuery : 2.1.0 -> 2.1.1
bootstrap : 3.1.1 -> 3.2.0

While there, update some outdated URLs.

I couldn't update sprintf.js to the latest version as it breaks the
jshint test.
regen.
Merge pull request #114 from GeJ/PR-static-updates_v2

Update libraries in the static/ directory  (take 2)