Expression profiles be exported as svg/pdf

[mutwil]

Important feature for including these into publication

[proost]

Checked this and this cannot be done using chartjs https://github.com/chartjs/Chart.js/issues/1400 .

[proost]

Will leave the ticket open and consider an alternative library or generate the plot server-side using a different framework.

[proost]

Maybe a solution : http://gionkunz.github.io/chartist-js/

[proost]

download buttons are now included for all plots

[mutwil]

Nice, but where is the button? ATM it downloads the exp values as txt.

[proost]

text downloads are included ;-) SVG export is not possible without switching to another library (which right now I'm reluctant to do given the number of pages that use charts.js and that I have no guarantee everything we have right now continues to work.

[proost]

Bokeh now has SVG export (0.12.6 release)!! And has all features we currently have, would require a large overhaul of the current code to migrate from charts.js to bokeh.