Merge branch 'release-0.10' of github.com:learningequality/ka-lite into ben_frontend

Conflicts:
	kalite/templates/central/base_central.html
Improved organization changes, tweaked forms and the a:hover

Conflicts:
	kalite/templates/central/org_management.html
Tweaked the organization page and added creative commons+copyright on the footer
Active menus are BACK
added styling for error messages
Improved organization changes, tweaked forms and the a:hover

Conflicts:
	kalite/static/less/style_with_bootstrap.less
	kalite/static/less/variables.less
	kalite/templates/central/homepage.html
	kalite/templates/central/org_management.html
Tweaked the organization page and added creative commons+copyright on the footer
Active menus are BACK
added styling for error messages
Cleaned up the css on the templates
fixed html errors in control_panel, added control_panel_active, renamed inner_content block to control_panel_content, got unnamed devices to show a name, so their links work.

Conflicts:
	kalite/templates/control_panel/base.html
	kalite/templates/control_panel/base_printable.html
	kalite/templates/control_panel/device_management.html
responsive menu
Updated install & about us links to _blank
Fixed the contact form and changed the size of the body font
Cleaned up the UI and added the tooltips on the org managment page
Corrected ui button bug
changed the frontpage and cleaned up the less
New line height on the landing page + Debug mode for the central server
Corrected registration and login form
Started writing the frontend guide