Update RSSFeed version block
Implement 'sitewide' RSS feed from a site root that is contenttype
selectable
Merge pull request #1091 from GawainLynch/feature/RSSFeed_0.3

Updates to RSSFeed extension
When a route has a 'contenttype' set after the 'contentlink' default route, it is used instead of the custom one. Fixes #1092
Bumping min-php version to 5.3.3.
No such thing as optional brackets.
test.
Test..
Test.
Test 4.
Initializing an empty set of relations. Ought to fix #1089.
After duplicating a record, return to the duplicate, not the original.
Bumping version to 1.5.6 dev