Removed use of .stress.version file

It seems this file was only used so that we could precisely reference
the jar-with-dependencies. It can be replaced by a wildcard since we
only generate one such jar.

The .stress.version file can contain more than the version number in
case the JAVA_HOME environment variable is not correctly defined.
Therefore I think we can simply delete it instead of adding more
exclusion rules in the 'grep -Ev' command.
Javadoc fixes
Merge branch '2.0' into 2.1
Merge pull request #188 from pingtimeout/version-file-removal

Removed use of .stress.version file
Signal host monitor as soon as a connection is marked defunct (JAVA-367).
Merge branch '2.0' of https://github.com/datastax/java-driver into 2.0
Merge branch '2.0' into 2.1
Complain on bogus values in set{Min,Max}SimultaneousRequestsPerConnection (JAVA-359).
Minor refactor
More javadoc fix
Merge branch '2.0' into 2.1
One more javadoc fix
[maven-release-plugin] prepare release 2.0.3
[maven-release-plugin] prepare for next development iteration
Fix potential NPE in ControlConnection (JAVA-373)
Merge branch '2.0' of https://github.com/datastax/java-driver into 2.0
Merge branch '2.0' into 2.1

Conflicts:
	driver-core/pom.xml
	driver-dse/pom.xml
	driver-examples/pom.xml
	driver-examples/stress/pom.xml
	pom.xml
Skip test of v2 protocol feature when testing with C* < 2 (JAVA-378).
Merge pull request #194 from olim7t/java378

Skip test of v2 protocol feature when testing with C* < 2 (JAVA-378).
Bump cassandra.version to 2.0.9