Scilab 5.5.0

[Max Brazhnikov]

Hi folks,

I've finally got a chance update math/scilab to the latest release.
The patch can be found at
http://people.freebsd.org/~makc/patches/scilab550-20140729.diff.xz

If you prefer a packed port directory:
http://people.freebsd.org/~makc/ports/scilab550-20140729.txz

I've reduced the number of options mainly for simplicity, PVM is not supported 
anymore.

I have tested it on 9-amd64/10-amd64, so I'm interested in other combinations.
Please report back to me in case of success or failure.

Scilab may crash at start up if graphics/libglesv2 is installed, deinstall it 
and try again before reporting a problem.

Max