#701390 frega, morningtime, Mixologic, alex_b et. al.: Fix RSS 1.0 parsing and add basic test framework for common_syndication_parser.

  other items.

  constructing a title.

Throw appropriate errors. Add an @ to suppress debug output when SimpleXMLElement constructor encounters problem. Output exception message (on FeedsSource level) instead.

#624456 bangpound: Feeds CSV parser setDelimiter method doesn't use the argument to set the delimiter.

Throw exception when download fails.