make the selector more inclusive

spec for dashboard’s sidebar visibility

fix linting errors for project dashboard page

remove unused var: shouldBeCollapsed

use project with repo, so download button became available

use es6 style for testing project dashboard

un-aliased global reference at sidebar.js.es6

fix spec from linting errors

code improvement

add singleton to `this`

assign `singleton` to class

add space in between

remove `no-underscore-dangle`

add complete changelog

sidebar internal state test

remove on page change, not exist in master. rebase.

only nicescroll if the element is there

new require style

reference to sidebar content outside of timeout