Merge pull request #1 from BosonW/master

add algebird example with spark srteaming
Merge pull request #2 from BosonW/master

good work boson.
Merge pull request #3 from BosonW/master

change scala object extends App, remove main mothed
Merge pull request #4 from BosonW/master

add  JaccardSimilarity and CountMinSketch
Merge pull request #5 from BosonW/master

add SparkMeetupDemo
Merge pull request #6 from BosonW/master

update README.md
Merge pull request #7 from BosonW/master

update SparkMeetupDemo
Finalize demo
simplify the code somewhat
added annotations to the SparkMeetupDemo
 joined approxDStream and exactDStream