Merge branch 'develop' of github.com:webistor/webistor-app into develop
Landing page
Added preview image to landing page.
Implemented login and invite popups.
Fixed invite and landing page reuse.
Merge branch 'feature/reskin-landing' of github.com:webistor/webistor-app into feature/reskin-landing

Conflicts:
	app/controllers/landing-controller.coffee
	app/views/landing/templates/landing-page.hbs
Ported register and password reset to landing page popups.
Merge branch 'feature/reskin-landing' of github.com:webistor/webistor-app into feature/reskin-landing
Can't use the /landing folder, since it conflicts with a route.
Merge branch 'feature/reskin-landing' into develop