ignore node_modules
add initial package.json
add init gruntfile with min task
add new dependency: grunt-contrib-uglify
add generated min file
use minify version in spec
update README.md
Some refactors.

Add options "value" and "max_value", now ignore options "number" and
"percentage"
Use "real" DOM elements instead of innerHTML
Allow text option to be a function or null
Update way of animate circles

- just need to call method update()
- add th method updateRadius() instead of old recall of generate()
Animation of decimal parts is now back
Clean the code a bit
"duration" option is now taken into account
Add htmlifyNumber method + adding classes
Add updateColors() method
Add updateWidth() method
Update README
Update README
Fix for FF and IE

We can't use innerHTML on a <svg> Element!