[WIP]: Improved UI
[WIP] improved UI
[WIP] Adding functionality to new buttons
Merge branch 'master' into improved-UI

Conflicts:
	pydy_viz/static/index.html
[WIP]Activated animation progress bar
Merge branch 'master' into improved-UI
[WIP] Activated progress bar.. working fine
Activated close server button
Removed Frame navigator and framerate statistics.
(to be implemented later)
Changed background color to WhiteSmoke
Changed canvas background, improved layout
Modified logo text
Removed light sphere
Merge pull request #103 from pydy/improved-UI

[WIP] Improved ui