Added NPM, Gitter, twitter, patreon badges

Conflicts:
	babylon.js/README.md
	babylon.js/src/babylon-ar.js
	contribs/portableAR.js/build/portable-ar.js

Conflicts:
	aframe/build/aframe-ar.js
	aframe/src/component-anchor.js

fix custom marker

Added an image at the top, removed Efficient from the title.

Created CONTRIBUTING.md

Created PULL_REQUEST_TEMPLATE.md

Same as what @jerommeetienne suggested

Added: Make sure all PR are originating from the dev branch

Still a WIP

Initial version

Created Basic Issue Template

inspired by webpack's issue template

analize -> analyze