Copy and paste is always visible.

This goes with new changes in the copy plugin that enables/disables the
button rather than hiding it. Fixes jitter in the ui as well.
click to expand on books and folders in the sidebar
Merge pull request #50 from oerpub/57574356

click to expand books and folders in the sidebar
do not let editor panel drop below the others
use colors from mock-up
Merge remote-tracking branch 'origin/master' into 58354376-make-colors-better

Conflicts:
	styles/variables.less
	styles/workspace/sidebar.less
Don't cut off the heading/table menus.
Merge pull request #54 from oerpub/58354376-make-colors-better

use colors from mock-up
Merge pull request #52 from oerpub/57874740

make editor panel not disappear on small monitors
Merge pull request #59 from oerpub/no-cutoff-menus

Don't cut off the heading/table menus. --
Merge pull request #46 from oerpub/copy-paste-always-visible

Copy and paste is always visible.
Merge remote-tracking branch 'origin/master' into 57878432

Conflicts:
	styles/workspace/workspace.less