Merged r1451 to r1454, r1458, r1460 to r1463 from trunk.

git-svn-id: http://redmine.rubyforge.org/svn/branches/0.7-stable@1474 e93f8b46-1217-0410-a6f0-8f06a7374b81

lib/redcloth.rb

@@ -764,7 +764,7 @@ class RedCloth < String
             ([\s\[{(]|[#{PUNCT}])?     # $pre
             "                          # start
             (#{C})                     # $atts
-            ([^"]+?)                   # $text
+            ([^"\n]+?)                 # $text
             \s?
             (?:\(([^)]+?)\)(?="))?     # $title
             ":