Merge pull request #1279 from pierreozoux/master

updates rocket.chat to 0.9

library/rocket.chat

@@ -1,6 +1,6 @@
 # maintainer: Rocket.Chat Image Team <[email protected]>
 
-0.7.0:  git://github.com/RocketChat/Docker.Official.Image@69f967fd139561a7eee0af140a8a07c28899731a
-0.7:    git://github.com/RocketChat/Docker.Official.Image@69f967fd139561a7eee0af140a8a07c28899731a
-0:      git://github.com/RocketChat/Docker.Official.Image@69f967fd139561a7eee0af140a8a07c28899731a
-latest: git://github.com/RocketChat/Docker.Official.Image@69f967fd139561a7eee0af140a8a07c28899731a
+0.9.0:  git://github.com/RocketChat/Docker.Official.Image@28f1ccabf676fc21eba3bcb631bc8da6fda68eea
+0.9:    git://github.com/RocketChat/Docker.Official.Image@28f1ccabf676fc21eba3bcb631bc8da6fda68eea
+0:      git://github.com/RocketChat/Docker.Official.Image@28f1ccabf676fc21eba3bcb631bc8da6fda68eea
+latest: git://github.com/RocketChat/Docker.Official.Image@28f1ccabf676fc21eba3bcb631bc8da6fda68eea