Better failure detection when API connection fails

[boonebgorges]

There are a bunch of ways the API connection could fail:

• Creating a user
• Referencing an existing EP user
• Creating a group
• Referencing an existing EP group
• Creating a group pad
• Referencing an existing pad
• Creating a group session

Right now, there are not good failure mechanisms for detecting failure and failing gracefully. At the very least, these failures should not set into motion an infinite loop of requests to EPL. At best, there should be a more helpful system of displaying error messages, along with tools for rectifying the errors.