make code Java 7 compatible
Merge pull request #6 from slintes/java7

Make code Java 7 compatible
Make the datetime conversion Java 7 compatible. It loses the nanosecond accuracy though..
Update README on Java 7 support.
Update version to 0.4.6
Move to SNAPSHOT build version
Improve formatting
Fix an issue with incorrect System.out code in README
Implement logging with the Simple Logging Facade for Java framework.
Build in a Retry Policy. Default policy is to do an indefinite exponential back off retry.

Fixes #4
version 0.4.7
Add a more clear example for reading out a value to README.
fixed redirect: new Url contains host and port!
Merge pull request #7 from slintes/redirectbug

fixed redirect: new Url contains host and port
Move version up to snapshot
Also publish separate client jar.
Version 0.4.8
Add mousio.client code to main jar.

Fixes #8
added etcdIndex to response
Merge pull request #9 from slintes/etcdIndex

Added etcdIndex to response