upgrade cassandra to 1.2.0
switch "drop keyspace" to "truncate" and fix paritioner identification
merge from master
add jetty dependency required by C* native protocol
fix maven packaging issues
run internal tests isolated and resurect testConfiguration for ICEKCVTest
Merge pull request #131 from thinkaurelius/cassandra-1-2-integration

Cassandra 1.2.0 integration
set distribution permissions: directory - 755, files - 644/normal, 775/executable
fixed assembly pluggin version issue.
clean up on parent pom, titan-core, and titan-test. Added Pavel as contributor and to various .txt files.
major cleaning of poms and generalizations up to parent pom.xml. Some stuff in there I don't know what it does, but we can clean over time.
Updated changelog
Merge remote-tracking branch 'origin/master'

Conflicts:
	CHANGELOG.textile
fix to distribution.xml to include LICENSE, README, CHANGELOG, UPDATE, and aggreaged javadocs. Still need to figure out how to exclude certain JavaDoc packages.
added doc/ to the distribution.xml so wikis are included.
added ../doc to the distribution.xml
added cassandra and hbase.local files.
add Titan.version()
Merge pull request #141 from thinkaurelius/issue_134

add Titan.version() (per issue #134)
added a default rexster.xml.