Replace instances of "rest/" with API_BASE.
Replace instances of "rest/" with API_BASE.

aprescott/diffa,lshift/diffa,lshift/diffa,0x6e6562/diffa,0x6e6562/diffa,aprescott/diffa,0x6e6562/diffa,0x6e6562/diffa,aprescott/diffa,lshift/diffa,lshift/diffa,aprescott/diffa,lshift/diffa