SCC, almost end
merge origin/feature/hyperanf
Add sparse matrix feature and improve performance of graph construction
implement SpMV
Merge branch 'develop' into feature/sparsematrix
create test class for SpMV, change the package of some classes, change name of some variables and methods of XPregel
fix compilation errors
debugging sparse matrix feature
Merge branch 'RB2.0b' into develop
scc(7/10)
Merge branch 'develop' into feature/hyperanf

Conflicts:
	src/test/SCCDebug.x10
	src/test/StronglyConnectedComponent2.x10
Added MST implementation, this is a preliminary version
Merge branch 'master' of ssh://git.code.sf.net/p/scalegraph/code into develop
Modified test classes to support test framework
This is for old test framework that does not support passing arguments
Implementing Spectral Clustering
Implemented Spectral Clustering.
add some methods to Team2 and create test of Team2
apply changes to degree-distribution implementation
Renamed ARPACK.cc to NativeARPACK.cc
Merge branch 'develop' of ssh://git.code.sf.net/p/scalegraph/code into develop