taddeus/graph_drawing: Python module for generating text-based graphs of tree-like objects @ 8692113740ed8e82a8099e3277d0904e5e61ffd1

Taddeus Kroes 8692113740 generate_line now rewrites 'a + -b' to 'a - b'.		%!s(int64=14) %!d(string=hai) anos
..
__init__.py	526d37362d Added Node, Line and Graph unit tests.	%!s(int64=14) %!d(string=hai) anos
rules.mk	859c2948b3 Fixed coverage in Makefile.	%!s(int64=14) %!d(string=hai) anos
test_graph.py	45bee0e4fe Fixed 'is this node a leaf?' issues.	%!s(int64=14) %!d(string=hai) anos
test_line.py	8692113740 generate_line now rewrites 'a + -b' to 'a - b'.	%!s(int64=14) %!d(string=hai) anos
test_node.py	526d37362d Added Node, Line and Graph unit tests.	%!s(int64=14) %!d(string=hai) anos