Add bagel, mllib to SBT assembly.
Also add jblas dependency to mllib pom.xml
Add mllib, bagel to repl dependencies
Also don't build an assembly jar for them
write and read generation in ResultTask
Merge pull request #753 from shivaram/glm-refactor

Build changes for ML lib
Merge pull request #757 from BlackNiuza/result_task_generation

Bug fix: SPARK-837