antonsviridenko/pica-pica — pull request #6 by EXL (2014-08-12 21:29:44+00:00)
Title: Disallow sending empty message

Fix this bug:
![pica-pica](https://cloud.githubusercontent.com/assets/232116/3898055/badd1d1c-2267-11e4-9f9f-ea0c536cafa2.png)