Textile reader: temporarily removed smartPunctuation.

The smartPuncutation parser from the markdown parser
was being used, but this creates two problems:

* smart punctuation rules are slightly different in textile,
  for example, a single dash wish space around becomes an
  En dash.
* the following gets parsed as a double quoted string followed
  by a colon, rather than as a link:

  "emphasized text":http://my.url.com

This needs rethinking.

src/Text/Pandoc/Readers/Textile.hs

@@ -68,7 +68,7 @@ import Text.Pandoc.Shared
 import Text.Pandoc.Parsing
 import Text.Pandoc.Readers.HTML ( htmlTag, htmlEndTag, -- find code blocks
                                   rawHtmlBlock, rawHtmlInline )
-import Text.Pandoc.Readers.Markdown (smartPunctuation)
+-- import Text.Pandoc.Readers.Markdown (smartPunctuation)
 import Text.ParserCombinators.Parsec
 import Data.Char ( digitToInt, isLetter )
 import Control.Monad ( guard )
@@ -314,7 +314,7 @@ inlineParsers :: [GenParser Char ParserState Inline]
 inlineParsers = [ autoLink
                 , str
                 , htmlSpan
-                , smartPunctuation -- from markdown reader
+--                , smartPunctuation -- from markdown reader
                 , whitespace
                 , endline
                 , rawHtmlInline