Added basic reloading of graphs after flot zoom/pan.
Dynamic graph reloading upon pan/zoom only happens for specifically-marked classes now.
Re-added 'force', apparently it was used
Got spinner to display on top (for pan/zoom reloading graphs)
If we zoom in too much, we don't get a graph-disabling html error message anymore
Updated changelog
Added two missing semicolons
Suppressing graph-busting textual message that isn't necessary when doing the
special flot pan/zooming
Merge pull request #40 from lizardsystem/reinout-flot-zoom-reload

Allow reload of graph data upon a flot zoom action