re #374. Include sentence field hasaudio when fetching Sentences belonging to the given list

git-svn-id: https://subversion.assembla.com/svn/tatoeba2/trunk@2027 e0e46c49-be69-4f5a-ad62-21024a331aea
re #373. Fixed hidden message on page that lists wall message of a specific user.

git-svn-id: https://subversion.assembla.com/svn/tatoeba2/trunk@2028 e0e46c49-be69-4f5a-ad62-21024a331aea
re #225. Added language: pcd

git-svn-id: https://subversion.assembla.com/svn/tatoeba2/trunk@2029 e0e46c49-be69-4f5a-ad62-21024a331aea
re #225. Language icon for pcd.

git-svn-id: https://subversion.assembla.com/svn/tatoeba2/trunk@2030 e0e46c49-be69-4f5a-ad62-21024a331aea
Turn sentence references within comments into URLs. Fixes #249