Update cmake used on travis

alexcrichton · alexcrichton · commit d97fb70c6307 · 2015-11-09T14:06:51.000-08:00
diff --git a/.travis.yml b/.travis.yml
@@ -32,7 +32,10 @@ after_success:
 addons:
   postgresql: "9.3"
   apt:
+    sources:
+      - kalakris-cmake
     packages:
+      - cmake
       - libcurl4-openssl-dev
       - libelf-dev
       - libdw-dev
