extra white space at stream

[Akira TAGOH]

When updating the status with the certain date within the message, the extra white space is inserted at the stream.

[anish patil]

Thank you for bug, Fixed by trimming the status while updating it. Commit can be found on https://bitbucket.org/anish_patil/statusapp/commits/b02487551c90ff2da647fb66b6d539cb60b548ab