heroku/hk — pull request #124 by bgentry (2014-03-13 21:18:04+00:00)
Title: move git sha/tag column to end of description

If the git description for the release's hash is not already included in the release's description (and thus isn't just a hash), append it to the end of the description when we display it.

Here's how it looks:

```
➜ hk releases -a hkdist
v120 b Jan 22 15:59 Deploy 15146e5
v121 b Jan 22 16:03 Deploy c11e447
v122 b Jan 22 16:56 Deploy e236e1b
v123 b Jan 23 11:47 Deploy 71316e5 (v20140123~5)
v124 b Jan 23 14:56 Deploy 8089f65 (v20140123~2)
...
v136 b Feb 11 14:55 Removed IMPORTANT config vars.
v137 b Feb 25 12:16 Deploy db8dba2 (v20140225)
v138 b Mar 3 12:45 Attach HEROKU_POSTGRESQL_ORANGE resource
v139 b Mar 3 12:50 Detach HEROKU_POSTGRESQL_ORANGE resource
v140 b Mar 11 21:01 Deploy dff5cef (v20140311)
```

Fixes #93. /cc @raul @kr