add TASK_FINISHED_NON_SCHEDULED_REQUEST

new type of email configuration for a when a task finishes, but isn’t
part of a scheduled request. Helps look for tasks which are exiting
with the wrong status codes.
customizable nav color
Merge pull request #262 from HubSpot/nav-color

customizable nav color
Remove call to undefined function
Merge pull request #5 from HubSpot/master

Merge from Hubspot