Adding new color for git commits

Git commits get a new color in this scheme. I'd love to re-do the whole
homepage but this is a start to make things stand out more.
Ignore Sentry logging if DSN_VALUE not set

Right now the site errors if we don't have a sentry DSN value. Obviously
not every deploy will use Sentry and so this shouldn't happen.

This should also be fixed up stream in the outline project.
Adding cron job to ansible django tasks

This additionally adds some convenience features for manipulating things
on the server once the app is deployed. This includes setting env
variables so that you can connect to the right database and such.
Merge branch 'feature/clean-up-icons' into develop
Merge branch 'hotfix/settings-busted-on-sentry' into develop

* hotfix/settings-busted-on-sentry:
  Ignore Sentry logging if DSN_VALUE not set
Updating changelog.
Release v2.0.0

* develop:
  Updating changelog.
  Adding cron job to ansible django tasks
  Ignore Sentry logging if DSN_VALUE not set
  Adding new color for git commits

Conflicts:
	beehve/settings.py