Support touch devices

[rik]

It should be adapted for touch devices. iPad and iPhones to start and maybe others.

• Zoom in and out with a pinch
• Turn pages with a swipe

[lauxley]

Is this still an issue ?

[diox]

Yes, we don't do anything fancy with gestures, we should.

[lauxley]

We are gonna need a newer version of jQuery (1.7+) if we want to implement this the easy way

[diox]

We should just use 1.9 anyway :)

[lauxley]

I started to work on a new branch 'swipe' (https://github.com/lauxley/django-digitalpaper/tree/swipe), i updated jquery to 1.9.1 but jdpicker is not compatible anymore, it might be a good idea to move on from this lib too ...
The branch is based on liberation's master but it may be a good idea to talk about the merge of colorbox (at least) before going forward with this one.