[Matrix]: init check-in of FlashMatrix.
Merge branch 'release' into graph-zd
Merge branch 'release' into graph-zd
Merge branch 'graph-release' into graph-zd
Merge branch 'graph-dev-v0.3' into graph-zd
[Graph]: FlashGraphR prints FlashGraphR object properly.
[Graph]: add ASE to FlashGraphR.
[Graph]: Update the document of fg.degree.
[Graph]: simplify install script for FlashGraphR.
[Graph]: fix cmake.
remove conf/data_files.txt.