Adding :admin:tools:install task to the travis build.sh (#89)

diff --git a/tools/travis/build.sh b/tools/travis/build.sh
index 755c465..a191428 100755
--- a/tools/travis/build.sh
+++ b/tools/travis/build.sh
@@ -28,6 +28,7 @@
 :core:controller:install \
 :core:invoker:install \
 :tests:install \
+:tools:admin:install \
 distDocker
 
 cd $WHISKDIR/ansible