Began work on making feature labels, descriptions, arrowheads remain visible when edge of feature is off the edge of the screen
Continued work on retaining feature label/description/arrowhead visibility
Slight fixes to scrolling behavior for feature labels, arrowheads etc
Fixed syntax problem to allow z-index to work in FF, and changed positioning of feature canvases from relative to absolute (not sure if this is the best solution yet)
revert probably-unintentional dojo/dijit submodule change
call updatestaticelements for all frects in all blocks, and have the Box glyph deal with that
Remove code causing labels to be always visible - more trouble than it's worth for now
Slight modifications to arrowhead rendering
Altered CanvasFeature clickmap event handlers to ensure onclick code etc is only run for one block per click
Started work on keeping feature labels/descriptions visible at all times using tooltips
Modified tooltips to wait 600 ms before appearing
Modified CanvasFeatures track tooltips to behave more like browser UI tooltips
Moved CanvasFeatures tooltip to document.body level to avoid z-index weirdness
Altered CanvasFeatures so that tooltip only waits before loading and moves around if mouse has been off a feature for more than 0.5s
Fixed glitch in CanvasFeatures wherein tooltip labels being cut short based on fRect width
Merge branch 'master' into arrowheads_2

Conflicts:
	src/JBrowse/View/Track/CanvasFeatures.js
Merge branch 'arrowheads_2' of github.com:GMOD/jbrowse into arrowheads_2
update release notes
tweak tooltip timeout to have the tooltip follow the mouse a little more
mention arrowheads staying visible in the release notes