Modified scene.py to run server in background, when called from
IPython notebook
WIP Run server in background, should be able to shutdown from UI
Removed irrelevant text output being printed by server
Removed some extra test being printed by server
Merge branch 'master' into run-server-as-background
(firefox support was merged into master later, so this branch didnt
hasd that support)
Fixed close server button(temporary fix)
Fixed Close Server button link
Improved server, to handle malformed requests without giving tracebacks,
or abrupt server shutdown
Merge pull request #101 from pydy/run-server-as-background

Modified scene.py to run server in background, when called from IPython notebook
Merge branch 'master' into improved-UI

Conflicts:
	pydy_viz/static/index.html
[WIP]Activated animation progress bar
changed server exception type from KeyError to IndexError in _parse_data
Merge branch 'master' into improved-UI
[WIP] Activated progress bar.. working fine