Merge branch 'staging'

Added the Addthis social buttons along with Google Analytics tracking code, there were no problems in staging
Merge branch 'master' into develop

Add the changes from master
Added the bitcoin button and code
Merge branch 'develop' into staging

Added bitcoin button and js code to interact with Coinbase
Fixed stray <div> after checking site on http://validator.w3.org/
Merge branch 'develop' into staging

Foxed stray <div> and then synced with staging again