If we have 1.7 then it fails when installing with `pip install -e /path/to/django-asset-convoy`

```
Downloading/unpacking Django>=1.7.0 (from django-asset-convoy==0.1.0)
  Could not find a version that satisfies the requirement Django>=1.7.0 (from django-asset-convoy==0.1.0) (from versions: 1.1.3, 1.1.4, 1.2.1, 1.2.2, 1.2.3, 1.2.4, 1.2.5, 1.2.6, 1.2.7, 1.2, 1.3.1, 1.3.2, 1.3.3, 1.3.4, 1.3.5, 1.3.6, 1.3.7, 1.3, 1.4.1, 1.4.10, 1.4.11, 1.4.12, 1.4.13, 1.4.2, 1.4.3, 1.4.4, 1.4.5, 1.4.6, 1.4.7, 1.4.8, 1.4.9, 1.4, 1.5.1, 1.5.2, 1.5.3, 1.5.4, 1.5.5, 1.5.6, 1.5.7, 1.5.8, 1.5, 1.6.1, 1.6.2, 1.6.3, 1.6.4, 1.6.5, 1.6)
Cleaning up...
No distributions matching the version for Django>=1.7.0 (from django-asset-convoy==0.1.0)
Storing complete log in /Users/peterconerly/.pip/pip.log

(convoy)django-asset-convoy pconerly$ pip freeze
Django==1.7b3
boto==2.27.0
cssmin==0.2.0
dj-database-url==0.3.0
dj-static==0.0.5
django-s3-folder-storage==0.2
django-storages==1.1.8
django-toolbelt==0.0.1
gnureadline==6.3.3
gunicorn==18.0
ipdb==0.8
ipython==2.1.0
psycopg2==2.5.2
pypandoc==0.8.1
pystache==0.5.3
rjsmin==1.0.9
static==1.0.2
wsgiref==0.1.2
```