RSS Feed will format plain text descriptions
RSS Feed was not displaying remote images in html description. Closes #1119
Merge pull request #1122 from maxrd2/rss_html

RSS Feed was not displaying remote images in html description.
Merge pull request #1147 from maxrd2/rss_text

RSS Feed plain text description is not formatted.
Save RSS cache in folder called rss.
Follow project coding style. Issue #2192.