unpin iso8601 dependency

Trim inbound data so the new iso8601 is happy

Change-Id: Ia08a1a5ca869cf5ff3c12f669736c2c3053d77eb

barbican/common/validators.py

@@ -192,7 +192,7 @@ class NewSecretValidator(ValidatorBase):
         expiration_raw = json_data.get('expiration', None)
         if expiration_raw and expiration_raw.strip():
             try:
-                expiration_tz = timeutils.parse_isotime(expiration_raw)
+                expiration_tz = timeutils.parse_isotime(expiration_raw.strip())
                 expiration = timeutils.normalize_time(expiration_tz)
             except ValueError:
                 LOG.exception("Problem parsing expiration date")

requirements.txt

@@ -1,7 +1,7 @@
 alembic>=0.4.1
 Babel>=1.3
 eventlet>=0.13.0
-iso8601==0.1.8
+iso8601>=0.1.9
 jsonschema>=1.3.0,!=1.4.0
 kombu>=2.4.8
 netaddr>=0.7.6