cuda/make.bash: fix wrong use of sed introduced in
88b578ab2b0cd8894500ba7589a44963a8cbaf9a
move astyle to pre-commit hook, use tab indent
fix thermal energy requiring fixed time step at T=0
indentation changes only
engine/regions.go: cleanup debug output
add test for self-defined variables
restore test/testdata for test/loadfile.txt
default Lambda=1, move aside test/regression008.txt
don't attempt to start gui with -http ""
draw: rudimentary arrows
draw: fix arrow overdraw
draw: one rasterization per frame
draw: fix Y mirror
fix draw/svg Y mirror issue
draw: don't render arrows if m=0
cleanup pre-commit
draw: scalable arrows
TODO: fix gnuplot "using"
v3.4.1, disable gui scroll-in-time for now