initial v1.1 commit

v1.1 is all about cleaning the code, group all functions & variables
into a single standalone object, clean up the CSS, add comments, …
pretty much everything has been rewrite
Update README
improve touchscreen support

a few CSS tricks to improve touchscreen support
Update README
Fix : Days name is wrong

You have to set the day of the "first_day" date. Otherwise, the default value of the day is today day.

Other fix : "3rd" dayLabel and the condition to detect a leap year

it should be working now
Merge pull request #2 from Nickdouille/patch-1

Fix : Days name is wrong
Look n feel update

Example page look n feel improvements
README.md update

Better description of usage & look n feel cleanup (+ image)
Merge pull request #3 from remi-grumeau/v1.1

V1.1