#572 Non-permitting domains are not always reported for image URLs

[Ahasuerus]

The software maintains a list of a few dozen domains that it "recognizes". For example, if the domain portion of a URL is "riversofwar.com", the software will display it as "1632, Inc." and link to www.1632.org. The problem with this approach is that it doesn't distinguish between author links to non-permitting sites like WordPress and Wikipedia (which are OK) and image links, which should not be allowed. We need to add an "OK to link to images" flag to the list of "recognized" domains and have the software check the flag instead of simply confirming that it is a "recognized" domain.

[Ahasuerus]

Implemented in:

common/library.py 1.79
common/viewers.py 1.95
mod/cleanup_report.py 1.42
nightly/nightly_update.py 1.111

Installed in r2015-089 on 2015-04-29. Closing.