Add 'compile_messages' command to setup.py

-   Add 'compile_messages' command to setup.py
-   Modify 'sdist' command to call 'compile_messages' before hands
-   Remove message files generation code in install step (fix issue#19)
-   Remove 'publish' command hack because it can be done with 'alias'
    command
Add 'publish' alias to setup.cfg

I remove 'publish' hack thus I add 'publish' alias which call 'sdist
upload' in same time
Merge pull request #20 from lambdalisue/issue19

Travis fail to install django-inspectional-registration #19