https://greenkeeper.io/

Update dependencies to enable Greenkeeper 

Also remove outdated notice about PRs

Cache stage bounding box and avoid unnecessary library rendering

https://greenkeeper.io/

https://greenkeeper.io/

Previously modal content was rendered before the modal was use, causing a re-render on every spriteInfoReport.

`getBoundingClientRect` forces WebKit to recalculate the layout ("force reflow"), so cache the canvas bounding box rather than getting it on every mouse event.

Make Compatibility Mode on By Default

Make Insertion Marker Visible

Change Toolbox Categories to match new design color

Design Changes

Adding Data to backdrop.json

No one else is working on this over here at the moment, so I am going to pull myself. Sorry ya'll.

Add Contribution Guidelines and Issue / PR Templates

Improve media library performance

The `info` property seems to refer to the image size, not the rotation center in the backdrop library. So if it exists, halve it to find the center.

Towards #18

Remove MediaLibrary helper since it is now unused

Now possible because we send down the correct content type for SVG assets.

add audio engine

Configure port through webpack, not npm

The previous method of configuring the port number was not cross-platform.  Resolves #20

YAGNI: Remove clutter from GUI component

Update in/active states for flag and stop

Pass for overall layout

Make git hooks a bit less cumbersome