Fixed bug where empty graphs would confict with global graph operations.
Merge branch 'staging' of github.com:visgence/portcullis into staging
Merge branch 'sharedView' into staging
Fix typo C to c.
Fixed bug with color change reseting graph zoom.
Move graph controls to streams side pane view.
Merge branch 'staging' of github.com:visgence/portcullis into sharedView

Conflicts:
	portcullis/views/side_pane.py
Moved the graph into its own template.