Slider in the homepage
A flexslider element has been added to the frontpage. Currently it is very limited, with no options:
- fixed height of 500px
- it displays five random images (totally random, can pick any image in the database)

But hey, it's a start!

Also, the imagewrapper classes and the new way of calculating the image to be retrieved from the server ensure that the correct image is displayed for every screen. Fixes #5.
Merge branch 'master' of ssh://www.claudionoguera.tk:2222/home3/claudio/private/kmc2-theme