Splits travis rule for Python wrapper

.travis.yml

@@ -16,13 +16,17 @@ matrix:
     - os: linux
       env: IMAGE=fedora:latest COMMAND=build_linux_gcc_fedora
       services: docker
-    - os: linux
-      script:
-        - $TRAVIS_BUILD_DIR/make_py_wheel.sh
-      services: docker
     - os: linux
       env: IMAGE=ubuntu:rolling COMMAND=build_linux_clang_ubuntu
       services: docker
+    - os: linux
+      script:
+        - $TRAVIS_BUILD_DIR/make_py_wheel.sh x86_64
+      services: docker
+    - os: linux
+      script:
+        - $TRAVIS_BUILD_DIR/make_py_wheel.sh i686
+      services: docker      
     - os: osx
       osx_image: xcode9.3
       env: IMAGE=native COMMAND=build_osx

make_py_wheel.sh

@@ -83,6 +83,8 @@ make_wheel() {
 
 if [ "$#" -eq 2 ]; then
   eval "$1" $2
+elif [ "$#" -eq 1 ]; then
+  run_docker quay.io/pypa/manylinux1_${1}  ${1}
 else
   run_docker quay.io/pypa/manylinux1_i686   i686
   run_docker quay.io/pypa/manylinux1_x86_64 x86_64