Integration tests. Fixes #12.
Ninja-fix: CassandraRDD#createStatement doesn't obtain a new session, but reuses the task's Session. Reduces severity of SessionManager-leak in the core driver (see: https://datastax-oss.atlassian.net/browse/JAVA-342).
Added method for reloading Cassandra server without change to configuration. Set java version to 1.7 in SBT.
Deleting temp directories after running integration tests.
Merge pull request #38 from datastax/issue-12

Integration tests. Fixes #12.
Add link to the Apache License in README.
Update version of Apache Cassandra in README. Fix the reference to build dependencies in Quick Start Guide.
Preparing the project to be published in Maven Central - enabling Publish settings, improving project description, completing contributor lists, making packaging more consistent etc. Warning: the project artifact name and the package names have changed! The artifact/project name "cassandra-driver-spark" becomes "spark-cassandra-connector". "com.datastax.driver.spark" becomes "com.datastax.spark.connector". The connector subpackage holding the CassandraConnector class becomes cql package.  No class name changes have been made. The changes have been required to avoid confusion with the Cassandra Java driver, which is a separate project, run by a separate team and having a separate release schedule. This project is not intended to be a Java driver module.
Fixed project github links in pom.xml. Replaced "ł" with "l" in my name for those who don't have an UTF-8 compatible editor.
Minor ScalaDoc fixes. Fixed generated maven artifact name.
Remove duplicate url entry in pom.xml.
Add support for signing artifacts before publishing to maven central.
Add information on downloading from maven.
Add information on downloading from maven (minor wording fixes).
Updates
Merge remote-tracking branch 'upstream/master'

Conflicts:
	src/test/scala/com/datastax/driver/spark/demo/BasicReadWriteDemo.scala