Remove unused import
Merge branch 'master' of gh-personal:mpdavis/vinz

# By Max Peterson
# Via Michael Davis (2) and Max Peterson (1)
* 'master' of gh-personal:mpdavis/vinz:
  Was not removing a pub_key from the user's key_list before deleting it
  Add creation_date and modified_date to a number of REST endpoints.
Making the scanner multi processed
Fixing tests
Merge pull request #90 from mpdavis/scan

Multiprocessed scanning
Merge pull request #91 from jacobhummel/frontend_public_keys

Frontend public keys
exception for server down
extra pass lines
Merge pull request #92 from organman91/scanner-exceptions

Raising an exception when the server could not be contacted
Start on scan logs
Simplify scan log status
Merge pull request #93 from computmaxer/scan_log_beginnings

Start on scan logs
Added a bunch of ActivityLogs
Cleaned up some code in UserGroups and ServerGroups
Merge pull request #95 from jacobhummel/frontend_misc_styling

Global responsive web changes, styles
Merge pull request #96 from computmaxer/activity_log_finishes

Added a bunch of ActivityLogs
Merge branch 'master' of https://github.com/mpdavis/vinz into frontend_misc_styling