Merge tag 'v2.4.0' into develop

LinkedIn Class and images. Fully working. Cleaned up CSS
fixing icon layout at small screen size
added transitions in css3
adding enquire2 basics
basic media query creation test works
further shenanigans with enquire2
created enquire2 and polyfill for basic width calc work
commented out enquire tests in mainjs
added setup and deferSetup rules
adding back in coderbits and fixing twitter for old ie
cleaning up for old browsers
moving back to enquire with better polyfill
created sections for css for better organization
fixing styles formatting. all working again
icons use filter and opacity to show loading state