Start adding login dialog
Add method and events for logging in
Hide log in form when logged in
Make changes less intrusive for testing
Revert commit 0b52a5c4, PR fixes
Finalize log in functionality
Prevent reload when logging in
Merge pull request #417 from virtual-world-framework/study-ID

Log In
Eliminate unnecessary findByID()
Remove repeated calls to "kernel.application()" in index.js
Merge pull request #422 from virtual-world-framework/performance

Performance
Redesigned Blockly UI

Conflicts:
	source/index.js
Fixed scrolling and resizing
Modified blocks and subtitles
Reversed reset icon
Make header/footer more opaque
Close blockly window on certain scenarios
Merge pull request #412 from virtual-world-framework/blockly-redesign

Blockly redesign
Add three.js app to display collision terrain (will soon generate heightmap)
Have heightmap_generator.js output the heightmap as a file