[octave] install octave 4.0.3 under mac osx EI 10.11, plot OK

ref: https://kiskeyix.org/articles/605

1.
install hombrew
install AquaTerm from sourceforge
brew tap homebrew/science
brew reinstall gnuplot --with-aquaterm
gnuplot # make sure it says "terminal set to aqua"
brew install lua51 # yes, you also need this old version of Lua
brew install octave

2.
vim ~/.octaverc
add below....

octave:1> graphics_toolkit('gnuplot')
octave:1> setenv('GNUTERM','aqua')

check again

octave:1> getenv("GNUTERM")
ans = aqua
octave:2>



=========================
For waring message when you plot
warning: could not match any font: *-normal-normal-10


use...

brew uninstall fontconfig

brew install fontconfig --universal

OK