Change release date + release notes (#505)

Author: betamoo

docs/release_notes.rst

@@ -4,7 +4,7 @@ Release Notes
 v3.3.0
 ------
 
-:date: 2018-04-24
+:date: 2018-05-09
 
 This is a backwards compatible, major bug fix release.
 
@@ -16,7 +16,6 @@ New features in this release:
 * Handle values from keys when batch get returns unprocessed keys. (#252, #376)
 * Externalizes AWS Credentials. (#426)
 * Add migration support for LegacyBooleanAttribute. (#404, #405)
-* Add python 3.5 for Travis ci builds. (#437)
 * Rate limited Page Iterator. (#481)
 
 
@@ -29,6 +28,7 @@ Fixes in this release:
 * Allow MapAttribute instances to be used as the RHS in expressions. (#488)
 * Return the correct last_evaluated_key for limited queries/scans. (#406, #410)
 * Fix exclusive_start_key getting lost in PageIterator. (#421)
+* Add python 3.5 for Travis ci builds. (#437)
 
 Contributors to this release:
 

pynamodb/__init__.py

@@ -7,4 +7,4 @@
 """
 __author__ = 'Jharrod LaFon'
 __license__ = 'MIT'
-__version__ = '3.2.1'
+__version__ = '3.3.0'