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updated readme with current abilities and note on tx-semantics change
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README.md

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The Java binding for the Neo4j Server REST API wraps the REST calls behind the well known
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[GraphDatabaseService](http://api.neo4j.org/1.2/org/neo4j/graphdb/GraphDatabaseService.html) API.
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[GraphDatabaseService](http://api.neo4j.org/1.8.M07/org/neo4j/graphdb/GraphDatabaseService.html) API.
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**Please note**, that the performance semantics are not the same, as most of these operations will cause a network
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request to the server. Make sure to minimize the fine grained operations and rely more on cypher and traversals to get
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your data and on batching and cypher to update the graph.
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You can also use the `RestAPIFacade` directly to interact with your Neo4j-Server, without the GraphDatabaseService Wrapper.
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Note
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----
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The behavior of "transactions" changed in 1.8, in 1.7 they were no-op, i.e. just ignored. So you could just leave them off to not confuse people.
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In 1.8 it tries to collect all operations within a tx as a batch-operation which will then be executed on the server.
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This has the implication that the results retrieved within that "tx" are not immediately available but only after you called tx.success and tx.finish
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Currently supports:
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___________________
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* all the node and relationship operations
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* the new Index API
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* Basic Http Auth (Digest)
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* preliminary traversal support
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* cypher, gremlin support
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* support for batch API
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* [cypher operations](http://docs.neo4j.org/chunked/milestone/rest-api-cypher.html)
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* [REST-batch operations](http://docs.neo4j.org/chunked/milestone/rest-api-batch-ops.html)
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* Basic Http Auth (Digest) (Important for using [Neo4j on Heroku](https://devcenter.heroku.com/articles/neo4j)
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* index creation and index operations (add, get, query, delete)
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* (Auto Index configuration)[http://docs.neo4j.org/chunked/milestone/rest-api-configurable-auto-indexes.html]
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* limited [traversal API](http://docs.neo4j.org/chunked/milestone/rest-api-traverse.html) but with dynamic language support
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* preliminary support for arbitrary server plugins and extensions
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* gremlin support
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Open issues:
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____________
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* full traversal support
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Usage:
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------
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<dependency>
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<groupId>org.neo4j</groupId>
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<artifactId>neo4j-rest-graphdb</artifactId>
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<version>1.6.M02</version>
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<version>1.8.M07</version>
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</dependency>
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GraphDatabaseService gds = new RestGraphDatabase("http://localhost:7474/db/data");
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GraphDatabaseService gds = new RestGraphDatabase("http://localhost:7474/db/data",username,password);
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// or using the RestAPI directly
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RestAPI restAPI = new RestAPIFacade("http://localhost:7474/db/data",username,password);
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// as a Spring Bean, e.g. in [Spring Data Neo4j](http://www.springsource.org/spring-data/neo4j)
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<bean id="graphDbService" class="org.neo4j.rest.graphdb.RestGraphDatabase" destroy-method="shutdown">
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<constructor-arg index="0" value="http://localhost:7474/db/data" />
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</bean>
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</pre>
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**Please note: Transactions are not supported over this API.**
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Unit Test:
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----------
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to start tests you will need the https://github.com/jexp/neo4j-clean-remote-db-addon to cleanup the database while
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References / Community:
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-----------------------
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