Add nodes.node_types
Implement some filtering functions (not tested and documented)
Implement show pipes (not tested and documented)
Fix bug in keyword specification
Add project filtering
Add filter pipe
Write docstrings
Add test
Add add_node pipe.
Add test of add_node.
Update test.
Merge branch 'add-node' into develop
Merge branch 'show_pipes' into develop
Enable to specify multiple projects
Merge branch 'show_pipes' into develop
Add rc.py
Add utility for check git status
Add argparser and configparser
Implement copy_requires and make
Implement node addition