Temporarily force Travis to build cross

As suggested by alexcrichton

Author: ArcaneNibble

.travis.yml

@@ -114,7 +114,7 @@ matrix:
     - env: IMAGE=armhf-gnu
       if: branch = auto
     - env: IMAGE=cross DEPLOY=1
-      if: branch = auto
+      # if: branch = auto
     - env: IMAGE=cross2 DEPLOY=1
       if: branch = auto
     - env: IMAGE=dist-aarch64-linux DEPLOY=1