More integ test bucket creation exception handling (#100)

If a developer has already run the integ tests in one region and then
tries to run them from another, the tests will fail with an
IllegalLocationConstraintException, which is the error thrown when a
user attempts to access an existing bucket from _outside_ the region it
lives. This commit adds IllegalLocationConstraintException to the
exceptions to ignore.

test/integ_tests/conftest.py

@@ -47,7 +47,13 @@ def s3_bucket(s3_resource, boto_session):
     try:
         bucket.create(ACL="private", CreateBucketConfiguration={"LocationConstraint": region_name})
     except ClientError as e:
-        if e.response["Error"]["Code"] == "BucketAlreadyOwnedByYou":
+        code = e.response["Error"]["Code"]
+
+        # Bucket exists in profile region
+        if code == "BucketAlreadyOwnedByYou":
+            pass
+        # Bucket exists in another region
+        elif code == "IllegalLocationConstraintException" and bucket.creation_date:
             pass
         else:
             raise e