nicer prints in the log
routing: fixed a bug with snapNodes which resulted in overlapping
Merge branch 'quickfix'
test_routing: changed testSnapNodes to use createGraph
graph: Edge.lengthSqr
main: default gridSpacing is now 48 (twice the kanji size)
test_routing: tests for lineStraightness and optimize with lineStraightness alone
utils, tests: nicer tests output; correct interpretation of test criteria result...
routing: fix testOptimizeLineStraightness one line, U turn
finally, some straight lines... see config for limiting time-consuming optimization steps