Fix #14 - Crosshair adjusts correctly as graph is resized.
Fix #14 - Crosshair adjusts correctly as graph is resized.

Heavily modified the Flot Crosshair plugin to cope with resizing.
Crosshair position is stored in axis units and converted to pixels
immediately before drawing the lines.

Removed unused features of the crosshair plugin.

GlidingWeb/IGCWebView,alistairmgreen/jsigc,GlidingWeb/IGCWebView,GlidingWeb/IGCWebView,alistairmgreen/jsigc