:racehorse: Do a single context.fill for all lines
Merge remote-tracking branch 'origin/canvas_rendering' into canvas_rendering
Merge branch 'canvas_rendering' of https://github.com/fundon/atom-minimap into canvas_rendering
Reintroduce computeIntactRanges and adapt it to canvas code.
:bug: Remove subscription to contents-modified signal
:bug: Revert ff86145 for now, need to investigate further
Different behaviour for minimap click and scroller drag
Add a grab cursor on visible area, to hint different behaviour.
Implement correct indicator dragging
Merge pull request #114 from jrouviere/canvas_rendering

Redraw minimum number of lines + Correct indicator drag behaviour