Merge pull request #1 from jittat/master

Pull all-message from jittat master
fix pdf to use inline display of browsers
(grafted from e31b572e8855ddcf56c682d6dd27999a434243d1)

--HG--
extra : source : 2b46fb6bd55e32a90c39e9932dc1a2cf2517d128
Merge pull request #10 from nattee/master

Let PDF be viewable by the inline viewer of the browser