Add sqf validator script to travis configuration

.travis.yml

@@ -9,6 +9,7 @@ before_script:
   - pip install pygithub3
 script:
   - python3 tools/deploy.py
+  - python3 tools/sqf_validator.py
 env:
   global:
     - secure: "KcJQbknBOdC5lA4nFGKPXVRVIGLDXDRzC8XkHuXJCE9pIR/wbxbkvx8fHKcC6SC9eHgzneC3+o4m4+CjIbVvIwDgslRbJ8Y59i90ncONmdoRx1HUYHwuYWVZm9HJFjCsIbrEqhSyyKS+PB3WZVOLbErtNHsgS8f43PTh5Ujg7Vg="

tools/sqf_validator.py

@@ -114,8 +114,8 @@ def main():
     for filename in sqf_list:
         bad_count = bad_count + check_sqf_syntax(filename)
 
-
     print ("Bad Count {0}".format(bad_count))
+    return bad_count
 
 if __name__ == "__main__":
-    main()
+    sys.exit(main())