added uptime widget to the default dashboard

idea copied from Graham Gilbert’s Sal:
http://grahamgilbert.com/blog/2014/01/17/sal-the-munki-puppet/
Update displays.php

delete duplicate entry for HP, add entry for CompuLab
added uptime column to clients listing, simplified

 uptime widget code and re-arranged default dashboard widget
Update displays.php

removed excess carriage return
Exception handling python 2.5 style
Merge branch '10.5-fix' into wip
Merge pull request #129 from nbalonso/bug-fix

added uptime widget to the default dashboard
Merge pull request #130 from diwanicki/patch-3

Update displays.php
Use moment.js for uptime formatting
Merge branch 'wip' of https://github.com/munkireport/munkireport-php into wip
Don't calculate uptime from check in time
Update displays.py

adds validation check to handle out of bounds values for _spdisplays_display-week
Update displays.py

corrections suggested by nbalonso
Update displays.py

Handle week=255 as indication of model year, not manufacturing date. See #138 and http://en.wikipedia.org/wiki/Extended_display_identification_data#EDID_1.3_data_format
Update displays.py

fixed typo
Update displays.py

typo
Update displays.py

eliminate complexity
Update displays.py

python grammar correction
Update displays.py

evidently the table doesn't like this, changing back to Manufactured
Update displays.py