Allow for custom authorize.net accounts, and prevent people from being chared for purchases if the custom authorize.net accounts are not in place. [PD-276]
Added tests for free products and purchases [PD-276]
Prevent products that cost money from showing up when the auth.net account is missing [PD-276]
Merge pull request #921 from DirectEmployers/authorize.net-accounts

Authorize.net accounts
Added a way to filter jobs and purchased jobs based on the site they're on [PD-619]
Confirm filtering works as desired for multiple sites [PD-619]
Non-user-facing filtering of jobs and products by site [PD-276]
Pull company user for current site first [PD-619]
Also filter purchased products by current site
A way to filter every postajob user-facing postajob model on site
View tests for filtering on current site
Pep8 and apparently a migration I missed
Merge pull request #926 from DirectEmployers/limit-jobs-shown-by-site

Limit jobs shown by site
Add filter groups for postajob site filtering [PD-619]
Merge pull request #933 from DirectEmployers/limit-jobs-by-groups-of-sites

Add filter groups for postajob site filtering [PD-619]
made tag search dive into contact tags.
Fixed topbar url
Merge branch 'master' of github.com:DirectEmployers/MyJobs into master-merge

Conflicts:
	postajob/tests/test_views.py
Fixed bad tabbing done by meld during merge
Merge pull request #960 from DirectEmployers/master-merge

Master merge