RELEASE: v0.3.0, big thanks to @marc-portier .
NEW: Add notes regarding migration between 0.2.x and 0.3.x .
FIX: Move up comment related to test coverage into its section.
BREAKING CHANGE: JSONbig is not anymore the default json serializer/deserializer, native JSON lib is used instead.

In order to use the JSONbig serializer/deserializer, initialize the client with bigint to true i.e solr.createClient({ bigint : true}) or via client.options.bigint = true. The reason for this change is that JSONbig has a significant performance impact when manipulating "large" chunk of data.
NEW: Update request module to version 2.42.0.
NEW: Run the test suite against Solr version 4.9.0 on Travis.
NEW: Run the test suite with node.js version 0.11.x too.
NEW: Configure npm test command to run the test suite first with JSON native then again with JSONbig.
NEW: Mention why/how to use JSONbig.
NEW: Pass a whole new object containing required properties to postJSON and getJSON functions instead of a reference to Client#options.

This allow properties to be static across the whole request/response cycle, particularly interesting for the property bigint which is quite subject to change between requests and since bigint value is used to determine JSON (de)serializer so at request time and response time you see where I am going!
NEW: Add migration guide between 0.3.x and 0.4.x.
RELEASE: v0.4.0
Merge branch 'master' into gh-pages
NEW: Update docs.