aheckmann/m — pull request #16 by gianpaj (2014-11-13 09:58:18+00:00)
Title: Sort versions properly

From this:
```
$ m
1.8.5
2.0.7
2.0.9
2.2.1
2.2.3
2.2.4
2.2.5
2.2.6
2.2.7
2.4.1
2.4.10
2.4.11
2.4.12
2.4.3
2.4.4
2.4.5
2.4.6
2.4.7
2.4.8
2.4.9
2.6.0
2.6.1
2.6.2
2.6.3
2.6.4
2.6.5
2.7.8
ο 2.8.0-rc0
```
to this:
```
$ m
1.8.5
2.0.7
2.0.9
2.2.1
2.2.3
2.2.4
2.2.5
2.2.6
2.2.7
2.4.1
2.4.3
2.4.4
2.4.5
2.4.6
2.4.7
2.4.8
2.4.9
2.4.10
2.4.11
2.4.12
2.6.0
2.6.1
2.6.2
2.6.3
2.6.4
2.6.5
2.7.8
ο 2.8.0-rc0
```