Added notification bar and made minor visual changes to the page.

templates/SkillTree.html
	-Mouse Memoirs and Lato font imports removed and replaced with Roboto font import
	-notification panel and notification DIVs added, will remove warning class later.
	-control panel added, with 2 buttons Save and Reset. Functionality to be added in the future.

css/main.css
	-definitions for the new notification panel added
	-body definitions moved skilltree.css
	-main font changed to Roboto (hosted by Google)
	-'h3.title' definition changed to .title
	-made title occupy less space in the DOM
	-made the top panel shorter
	-input and select definitions removed, input definition moved to #module_search instead
	-height of #module_list changed to min-height
	-added definition for the Save/Reset control panel

data.py
	-added test stub for direct JSON receiver endpoint

scripts/script.js
	-added test function for sending of a JSON object
	-added function to notify the user via the notification panel, and a function to hide it again.
	-added the NOTIFICATIONS enum in the skillTree global variable
	-fixed the resize bug for the module search panel
	-the tooltip for the nickname change prompt will now appear to its left
	-added handler for a close button for the notification panel

scripts/skillTree.js
	-added the notification panel to the resize function