Merge pull request #1818 from tianon/rocket.chat-0.33.0

Update rocket.chat to 0.33.0

library/rocket.chat

@@ -1,6 +1,6 @@
 # maintainer: Rocket.Chat Image Team <[email protected]>
 
-0.31.0: git://github.com/RocketChat/Docker.Official.Image@a4efe18c874edca161553c0879d451f71b713bd0
-0.31: git://github.com/RocketChat/Docker.Official.Image@a4efe18c874edca161553c0879d451f71b713bd0
-0: git://github.com/RocketChat/Docker.Official.Image@a4efe18c874edca161553c0879d451f71b713bd0
-latest: git://github.com/RocketChat/Docker.Official.Image@a4efe18c874edca161553c0879d451f71b713bd0
+0.33.0: git://github.com/RocketChat/Docker.Official.Image@13acd7125ec208e41aa58bbafd3c09aa5b1e6906
+0.33: git://github.com/RocketChat/Docker.Official.Image@13acd7125ec208e41aa58bbafd3c09aa5b1e6906
+0: git://github.com/RocketChat/Docker.Official.Image@13acd7125ec208e41aa58bbafd3c09aa5b1e6906
+latest: git://github.com/RocketChat/Docker.Official.Image@13acd7125ec208e41aa58bbafd3c09aa5b1e6906