version bump to v1.0.4 and updating changelog

Author: mattsb42-aws

CHANGELOG.rst

@@ -2,12 +2,26 @@
 Changelog
 *********
 
+1.0.4 -- 2018-05-16
+===================
+
+Bugfixes
+--------
+* Fix ``MostRecentProvider`` behavior when lock cannot be acquired.
+  `#72 <https://github.com/awslabs/aws-dynamodb-encryption-python/issues/72>`_
+
 1.0.3 -- 2018-05-03
 ===================
+
+Bugfixes
+--------
 * Finish fixing ``MANIFEST.in``.
 
 1.0.2 -- 2018-05-03
 ===================
+
+Bugfixes
+--------
 * Fill out ``MANIFEST.in`` to correctly include necessary files in source build.
 
 1.0.1 -- 2018-05-02

src/dynamodb_encryption_sdk/identifiers.py

@@ -14,7 +14,7 @@
 from enum import Enum
 
 __all__ = ('LOGGER_NAME', 'CryptoAction', 'EncryptionKeyType', 'KeyEncodingType')
-__version__ = '1.0.3'
+__version__ = '1.0.4'
 
 LOGGER_NAME = 'dynamodb_encryption_sdk'
 USER_AGENT_SUFFIX = 'DynamodbEncryptionSdkPython/{}'.format(__version__)