Writing tests first
Finding nearby members by distance

Distance is now configurable
Units framework is there but it's not working yet
Fix tests for units in Members#nearby
Units: be less trusting of user input.
Rename local vars in tests for greater clarity.
Put locations in geolocated_member factory names.
Add a dropdown to select units on members/nearby.
added CONTRIBUTING.md
minor wording changes
Replace tabs with spaces.
added contact link to footer
removed Courtney from about section
Added a reply link to the notifications/show page

- sets subject "Re: whatever" for PMs
- also removed "sender=N" from PM link (wtf! -- it wasn't doing anything
    but it looked bad.)
removed unused random crop code
Added reply link to notification email.

Note: this breaks DRY but we couldn't figure out how to put it in a
helper and make it useable by both the controller and the mailer.
Suggestions/help much appreciated!
Show previous comments when creating a comment.

 - Move "show previous comments" into a partial
 - invoke said partial from the new comment form
 - add tests.
Show other comments on post when editing a comment.
added credentials.example
Merge pull request #175 from Skud/contributing

added CONTRIBUTING.md
Merge pull request #177 from Skud/contact

added contact link to footer