[Graph]: give FlashGraphR object a class name.
[Graph]: write a script to run release test.
[Graph]: remove the original test for kcore.
[Graph]: provide a script of installing FlashGraphR.
[SAFS]: add is_safs_init.
[Graph]: run FlashGraph on SAFS and local filesystem.
[Graph]: adapt test.
[Graph]: allow FlashGraphR to run in standalone mode.
[Graph]: set default FlashGraphR conf file in local directory.
[Graph]: check I/O errors when loading vertex index.
[Graph]: add /usr/local to the search path in install_FlashGraphR.sh
[Graph]: test_algs run in standalone mode if SAFS isn't setup.
[Graph]: FlashGraphR indicates whether a graph is in memory.
[Graph]: rename the R binding as FlashGraphR.
[Graph]: simplify el2al.
[Graph]: el2al uses all kinds of whitespace as delimiter.
[Graph]: el2al reverses edges for undirected graphs by default.
[Graph]: el2al converts undirected graphs in the same way as directed.
[Graph]: el2al convert edge lists in memory by default.
[Graph]: el2al uses the dir of output graph file as work dir.