Merge pull request #11 from gwtquery/mcm_slides_4

done
Merge branch 'master' into mcm_slides_4
add more slides
Merge pull request #12 from gwtquery/jd_slides_2

add more slides
refactoring + add
Merge pull request #13 from gwtquery/jd_slides_3

refactoring + add
Using on
Enhance widget
merging with julien