add fast pass to graph finalization if there is no changes to the graph
Merge pull request #65 from dbickson/master

re-enabled dynamic graphs per yucheng request
Merge pull request #66 from dbickson/master

Added binary edge support for SVD - per SC 13 reuqest
Merge pull request #67 from dbickson/master

adding svd scaling testing to the gl_ec2 script
Merge pull request #68 from dbickson/master

added svd testing to gl_ec2.py
Merge pull request #70 from haijieg/master

add fast pass to graph finalization if there is no changes to the graph
Merge pull request #72 from dbickson/master

added cost metric for kmeans for SCC 13
 - Replaced fiber_control internal scheduler with a lock-free queue for
faster context switching and scheduling.
 - fiber_group now has a more convenient version of the launch()
  function if you want to lock affinity to a single worker.
 - Removed the deprecated WAIT_FOR_REPLY and REPLY_PACKET message flags
 in RPC.
 - Added a FLUSH_PACKET message flag in RPC which requests for an
 message queue flush as soon as possible. This message flag is also
 inheritted when replying to a regular request call.
 - Removed a bunch of unnecessary flushes to allow for better message
 combining when fibers are used.
 - General Perfomrmance improvements in async stuff by ~25% on early
 benchmarks.
Fixed merge error in the previous checkin.
Merge pull request #73 from ylow/master

Asynchronous And Fiber Performance Improvements
Really bad bug in the recently submitted patch to the fiber_control
where fibers somehow ended up sharing the same queue.
Merge pull request #74 from ylow/master

Bug in recent patch
Fixed a bug in warp_parfor_all_vertices where it is ignoring the
vertex_set argument
Merge pull request #75 from ylow/master

Fixed a bug in warp_parfor_all_vertices where it is ignoring the vertex_set argument
Merge pull request #76 from dbickson/master

ported svd to work with the warp engine
Merge pull request #77 from dbickson/master

reverted svd back to use the GAS model
Merge pull request #78 from dbickson/master

added missing END_TRACEPOINT at dc.cpp which prevented using tracing
Removed a broken link. Change folder names from 'graphlabapi' to 'graphlab'
submit some minor fix to gl_ec2, moved HPC stuff to comment since we may want to support it in the future