Merge pull request #8 from stanislas/master

raw merge with clojure 1.5.1
Merge pull request #9 from stanislas/master

Java-like hierarchy for clj-ds
Merge pull request #10 from stanislas/master

fix TransientVector#persist
Merge pull request #11 from stanislas/0.0.3-stan

Add some java doc the the clj_ds interfaces and classes.
Remove the pvectormap join/task experiment to remove dependency on jsr166y.
Rename packages to have same maven artifact naming.
Prepare pom.xml and Readme file for Release 0.0.4