FIX: the order of the jQuery libraries
The upload files is now supported
remove gitignore and added jquery library
Nothing
Changed category to population
Dashboard draws something for continuous population.
 Added
Added Jquery ui minimum library
Changed primary to Category
The continuous chart now can be shown as accumulated or as density
Filter by secondary attributes is now supported.

FIX: Reset button removes active class from the others buttons
Multiples categories are now supported
Little fixes in the HTML.

Dimension of the chart is now calculated dynamically
Kde is calculated with nrd0 instead nrd* because it is better when there are few values

* nrd = Silverman, B. W. (1986) Density Estimation. London: Chapman and Hall.
  nrd0= Scott, D. W. (1992) Multivariate Density Estimation: Theory, Practice, and Visualization. Wiley.
FIX: The All/none buttons not always appear
FIX: The resizing of the button-box
FIX: The resizing of the bar in the slider-box
FIX: The initial size and resizing of the graphic
FIX: The reset, fails in some case
FIX: The graphic is painted even if all population is filtered but no bars are painted.

Remove unused code.