I imagine blaze-component changed their Mixins API since I written
this code. We need some tests to avoid this kind of regressions when
updating dependencies!
Fixes#420
Replace the old (and broken) jshint + jscsrc by eslint and configure
it to support some of the ES6 features.
The command `eslint` currently has one error which is a bug that was
discovered by its static analysis and should be fixed (usage of a
dead object).
We now replace native scrollbar by custom ones on the list card (which
is required by the new ergonomics in the parent commit), but the
"scrolling engine", is still native, we just hide the scrollbar and
draw our own in HTML/CSS using the perfect-scrollbar package (from
bower).
This commit also implements component scrolling when certain actions
are performed, eg scroll to the bottom when the new card composer is
opened.
