improve Makefile
add test for sssp_path_adj example
fix indent
add built-in Node_Set.Clear to compiler
add Clear Map and Collection to syntax highlighting for vim
Merge pull request #121 from honkdamonk/set_clear

Added N_S.Clear to compiler
64bit for graph gen
fix error with egge64
Merge branch 'master' of github.com:stanford-ppl/Green-Marl
Merge branch 'master' of https://github.com/stanford-ppl/Green-Marl