remove old inline 'graphlab engine'
compute total rank to compare with Graphlab results
igor for graphlab pagerank
set grappa_version to osdi
oops, include igor_common
Reducer: add Max/Min (with << operator)
Reducer: add '--' overloads for Add
rename to 'GraphlabVertexData', add 'deactivate()'
add forall(Edge,Vertex), better logging in Graph::create, + comments
SSSP: add '--max_degree_source'
igor: print graphlab iterations
bunch of fixes to graphlab pagerank
graphlab: verify num active matches count
rearrange to have VertexProgram allocated for each vertex for the whole engine execution
do apply/scatter in separate minor steps (otherwise we cheat and get slightly updated cache values
get rid of active count check
move 'Graph::create' after forall overloads so we can use them
mark vertices with no edges (in or out) as invalid and don't visit them