Fix a bug in TextRange

Hello @nicks, 

Please review the following commits I made in branch 'b20140401'.

65288d1003dd6c140459b7ef47c164b12694bb73 (2014-04-02 09:34:57 -0700)
Update version number

6edbd121f72d5f7da39627325619965721b5321e (2014-04-02 00:37:40 -0700)
Fix a bug in TextRange#clone

R=@nicks