Add Squid Verification

The shoalUpdate thread systematically runs the verification test on
squids saved to the server.
The verification test its contained in the squid_auditor.py file.
Changes were made to the html templates to accomidate the
verification column in the web interface.
Add Pure Python Squid Verification
Add Special Verification Cases

Some squids cannot be authenticated from outside their domain.
Changes made to agent and server to accomidate these special cases.
Fix Style and Formatting

Changes made based on code review by Andre.
Files now contain more detailed commenting.
Add load vs distance optimization #63
Add load vs distance optimization to agent #63
Fix Squid Verification

Removed the need to make a request for squids from the server.
Now acceses the shoals saved locally and itterates through them.
Cleaned up outdated code from squid_auditor.
Add new url '/allnearest'

/allnearest returns all squids regaurdless of their verification status.
Merge branch 'master' of https://github.com/colsond/shoal