Add zoom
Implement zoom for brushes, various zoom fixes, remove canvasBorder.
Fixes to zoom for groups and brushes.
Merge branch 'master' of https://github.com/kangax/fabric.js

Conflicts:
	dist/all.js
	dist/all.require.js
	src/brushes/circle_brush.class.js
	src/brushes/spray_brush.class.js
	src/canvas.class.js
	src/mixins/canvas_events.mixin.js
	src/mixins/object_interactivity.mixin.js
	src/shapes/group.class.js
	src/shapes/image.class.js
	src/shapes/object.class.js
	src/util/misc.js
Merge branch 'master' of https://github.com/kangax/fabric.js

Conflicts:
	dist/all.require.js
Fixed control and group selection rendering
Copy/Paste from/to external resources
Convert extra "moveto" coordinates to "lineto" commands.

Per the [SVG spec](http://www.w3.org/TR/SVG11/paths.html#PathDataMovetoCommands):

> If a moveto is followed by multiple pairs of coordinates, the
> subsequent pairs are treated as implicit lineto commands. Hence,
> implicit lineto commands will be relative if the moveto is relative,
> and absolute if the moveto is absolute."
Add spec for multiple M/m coordinates being converted to L/l.
Merge pull request #1365 from rodovich/implicit-lineto

Convert extra "moveto" coordinates to implicit "lineto" commands
Merge remote-tracking branch 'upstream/master'

Conflicts:
	.gitignore
	dist/fabric.js
	dist/fabric.require.js
	src/brushes/circle_brush.class.js
	src/canvas.class.js
	src/mixins/canvas_events.mixin.js
	src/mixins/object_geometry.mixin.js
	src/mixins/object_interactivity.mixin.js
	src/shapes/group.class.js
	src/shapes/image.class.js
	src/shapes/object.class.js
	src/shapes/path_group.class.js
	src/shapes/text.class.js
Merge remote-tracking branch 'upstream/master'
JShint
JSHint, restoring .gitignore
Copy/paste old browsers support check
Stray console.log removed.
Merge pull request #1348 from Kureev/copy/paste

Copy/Paste from/to external resources
Add IE support for `copy` / `paste` events
Fix for `cut` event if nothing is selected
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