[Plplot-devel] Octave 3.8 support

[Andrew R. <and...@us...>]

Following some testing on Debian sid, I've managed to get plplot svn working properly with octave 3.8. This requires swig 2.0.12 to work. I've also had to fix our examples and scripts due to some changes in octave 3.8. These changes are all backwards compatible with octave 3.6.