CS-4501: UI in article edit screen to show and disable rating functionality
add rating_enabled field to Articles table
CS-4549: Allow users to override Solr server url

Changes config setting from solr_server to search.solr_server
Adds search.solr_server to application.ini-dist
CS-4546: Broken image reference breaks admin

Add image to be used when image reference is broken.
CS-4546: Broken image reference breaks admin

Fix unit tests.
Add missing changes for webcode upgrade.
CS-4501: UI in article edit screen to show and disable rating functionality
added switch for rating_enabled (default to true) and rating in article info
Merge branch 'cs-4546-broken-image' of https://github.com/petrjasek/Newscoop into v4.1
Merge branch 'fix-upgrade-webcode' of https://github.com/petrjasek/Newscoop into v4.1
Merge branch 'v4.1' of https://github.com/msat-cont/Newscoop into v4.1
Merge branch 'CS-4501' of https://github.com/thnkloud9/Newscoop into v4.1
Merge remote-tracking branch 'holman/allows-override-solr-server-url' into v4.1
CS-4551: If server is behind proxy. Newscoop saves local IP address for comments.
* fixed