extend dynamodb2.table.query_count for more args
Add support for next_token to get_all_reservations, and have
get_only_instances use it to fetch all results.
add simple test for query_count
Adding missing health_check value for weighted record sets.
add test that next_token is properly passed from get_all_reservations to
DescribeInstances call
Merge pull request #2189 from catlee/master

Add support for next_token to EC2 get_all_reservations. Fixes #2189.
Add test case check for setting healthcheck property on resource record.
Merge branch 'release-2.28.0'
Add method TaggedEC2Object.add_tags().

There is already a TaggedEC2Object.add_tag() method but it only supports
adding one tag at a time. The CreateTags api supports adding multiple tags
at once. So, when you want to add multiple tags you needlessly make multiple
round-trips to EC2 service. The add_tags method helps in avoiding that.
Add "attributes" parameter to boto.dynamodb2.table.Table.batch_get
Merge branch 'release-2.29.0'
Merge branch 'release-2.29.1'
Fix behaviour of remove_tag when empty string is provided as value.

The documentation says that there is a distinction between a
value of '' and a value of None. The API docs say the same
thing. But the code was not following the docs:
    if value:
returns False for both None and ''.
Add tests for add_tag, add_tags, remove_tag methods of TaggedEC2Object
get_all_networkinterfaces() - add param to restrict lookup by list of ENIs
add update(), attach(), and detach() methods
add eni unit tests
closes #2304; relocate requirements checks
s/existance/existence/
Add documentation for delete_hosted_zone.

Added documentation for delete_hosted_zone and add return type documentation for get_zones.