pfSense

roll back for 2_3 for picture widget

Fixed #7896
Handled the case where there is no picture and made it simpler to load
a picture.

(cherry picked from commit dc91c9490a61c374b4358a3a328019f3e0e150ab)

Fixed #7714
Added JS code to formate the date/time for UCT

(cherry picked from commit 893b609111be502233a7a4ad6804fff1e4779a03)

Fixed #7921

(cherry picked from commit 5fce3e8e905c3a2029475293cf760ee2c2a51074)

Fix PPP log reference in status.php

(cherry picked from commit 35e5c404ef0d03d40eeac7f5a33f43da0d3ac6fc)
(cherry picked from commit 69ed1107fac3c256695d9c1ba4fb684a328a6faa)

Don't call widget callback function if no data is returned

remove old logo from default page

make css compatible with newer nvd3 version

update top nav bar logo

remove image from rss widget