Update README.md
PDIO-290 Integrate Graphchi CF algos: ALS, CCD++, SGD, NMF, CLiMF.
OS and arch detection for MongoDB installation
sh compatibility
Automatic installation of GraphChi binaries
Fix GraphChi file name
Finish automatic multi-arch GraphChi binaries installation
Use pack for parameter generator
Use pack for U2I training-test split wrapper
Fix Hadoop command submission
Upgrade to Play 2.2.2
PDIO-290 Fix reading dense matrix market format
Fix API tests
Merge branch 'predictionorgin/develop'
PDIO-236 response bad request 400