Audit now correctly converts data with the entity.to_net filter (resolves issue #16)
Repairing case in which audit logs contain no data
adding gitignore
Added a custom json decoder to allow the reference implementation
of the client to decode datetime values
some fixes to the client libraries
adding default VARCHAR size for sqlalchemy interface.
password is also using VARCHAR
keep the test schema in a file
start adding more complex functional tests with a real-world schema
version bump; adding the validator for ip6 fields
run functional tests on multiple backends
added a couple of useful lines to the top-level .gitignore
begin work on the etcd interface
Small additions to configdb etcd interface
etcd interface passing all tests, supports audit.

The etcd interface now passes all tests and also supports a very crude
audit logging. At the moment, only 100 audit messages are supported.

Due to a change of behaviour in dateutil, we had to change a little our
exception handling in the schema in order to pass tests in python
2.7.5.

The etcd driver has still not been road-tested
Correcting typo.
Changed the encode/decode of master keys to handle how etcd works.

Also fixed a typo in calling write() with a parameter.
sort audit logs depending on the timestamp
Modified the consistency model of the etcd interface.

Also fixed some more tests.
Sync the etcd interface with changes in API