pshangov/dist-zilla-app-command-podpreview — pull request #4 by kentfredric (2014-10-30 16:37:21+00:00)
Title: Defer and avoid loading some dependencies.

Every command is loaded before any command executes, so avoiding
unnecessary dependencies impacts all dzil commands.

Differences:
```
cd /var/empty;
dzil nop
```
Savings:
- 17 dependencies
- 0.05 wallclock seconds
- 13 Megabytes of memory
- 5 involuntary context switches