misc (swipe, express upgrade, loading-bug, jquery update)

- add Hammer.js (swipeleft, swiperight for iPad)
- update jQuery from 1.7 to 1.11
- try to fix annoying visible elements when loading presentation
- update about slide
- upgrade Express (2.x -> 3.x)
misc (grunt, v0.3.0, jshint, version runtime on gh-pages)

- add grunt (jshint and gh-pages)
- change remote control url from remote.html to index.html
- make own JS files jshint conform
- create versioned runtime files on gh-pages