'bootstrap', a rake task to get up and running quickly

This creates files based on .example files, creates a new secret in
the initializer, loads the schema, starts a server, and opens a browser
[completes #53397511] User sees pretty time in task list

I moved pretty_time helper to the application_helper and organized the
methods alphabetically.  I also cleaned up some whitespace in the
notifications spec.
Merge pull request #7 from GSA-OCSIT/pretty_time_in_task_list

[completes #53397511] User sees pretty time in task list
Merge branch 'master' into testing