corrected spelling
Refs #267. Fixed flake8 line too long
Refs #267. Only use django.utils.timezone if it can be imported
fix extensions for validate_templates rst documentation
added flake8 to travis ci

because style matters ;)
remove max_length from constructor as it breaks field conventions
added tests credits go to Skylar Saveland
update travis.yml
fix flake8 warnings

using a newer version of flake8 there turned out to be more style
warnings to be fixed
update travis
fix encrypted field tests
quite install keyzcar
cleanup / reorganize of shell_plus

* move away from the deep nested try-except statements
* add cli options for each type of interactive shell
* make --notebook show errors instead of falling back to plain shell
* have --print-sql not counting the time to get the raw query for printing as part of the query execution time
fix style
Refs #267. Fixed flake8 line too long
Refs #267. Only use django.utils.timezone if it can be imported
Merge branch 'master' of https://github.com/kylegibson/django-extensions
Update docstring for UUIDField

Which is actually uses version 4 by default.
Merge pull request #270 from jpic/patch-1

Update docstring for UUIDField
Make README links clickable and organized.