Fix typo in 100k clicks achievement

Fixes #18
Fix #20
Possible analytics fix
Add explicit "About" link.;
Add a very simple mobile version of the game. At this stage this is for
testing purposes only. For a next release I will work on putting all the
controllers in templates and have only one page for everything.
Implement first mobile version.
Get warning on index.html to work.
Add fastclick.
Mention fastclick in the libraries section.