Merge pull request #47 from dbickson/master

added a note about likelihood interval calculation
Merge pull request #49 from dbickson/master

fixing svd defaults and documentation to have a clearer output
Fix minor typo in basic GraphLab tutorial
Merge pull request #50 from iglesias/master

Fix minor typo in basic GraphLab tutorial. Thanks Fernando for your fix!
Merge pull request #52 from dbickson/master

fixed documentation of connected componetns to be clearer
Merge pull request #54 from dbickson/master

added a sanity check that private ssh key permission should be 400 (or e...
fixing a bug related to not finding the running instance see : https://spark-project.atlassian.net/browse/SPARK-749