Merge remote-tracking branch 'upstream/master'
submit some minor fix to gl_ec2, moved HPC stuff to comment since we may want to support it in the future
removing hdfs from als_demo
improving ec2_gl script for allowing public benchamrking of graphlab
removed ununsed tracepoint which prevents compilation when using USE_TRACEPOINT
updated als documentation to include minval and maxval command line flags - which improve validation RMSE
Merge pull request #80 from dbickson/master

Working on open source benchmarking for ec2
adding more traces to track svd performance
Merge pull request #81 from dbickson/master

adding more traces to track svd performance
improving ec2 script to work with hvm instances
cleaning benchmarking using gl_ec2.py, added support for resume option
Merge pull request #82 from dbickson/master

Improving benchmarking, using hvm ec2 instance
added ec2 benchmarking script
added benchmark ec2 script
Merge pull request #83 from dbickson/master

added ec2 benchmarking script
Merge remote-tracking branch 'upstream/master'
use size_t in conting_sort
Merge pull request #85 from haijieg/master

User size_t counter in conting_sort
Fix to approximate_diameter to compile on clang.
Merge pull request #86 from ylow/master

Fix to approximate_diameter to compile on clang.