Ox 7.2: new features and fixes

New features and enhancements in version 7.2

Can skip items in multiple assignment, e.g.:
[a,,c] = {1, 2, 3}; setting a to 1 and c to 3.
Assignment of single character string into character position of string now allowed, e.g.:
s[i] = "a";
But this is still an error: s[i] = "ab";

prints from Ox, but when running from an oxo file.
Using lambda function with return in constructor would give error message: `de/constructor cannot return a value'
sscan(&sin, " %z", &sline); would not handle the text before the %z correctly (in this example a space to skip leading white space) when updating the sin argument.
Simulator class would not report coefficients if any are always zero.
{} as default argument in class member would lead to a crash.
New version of Lapack.
decschur and decschurgen should be labelled as OX_SERIAL, because they are not threadsafe.
foreach potentially had a memory leak (if it did, it happened at the end of every iteration).
find(where, what) always returns -1 when where is an integer or double; this find issue also seems to play a role in PcGive forecasting.
Fixed potential error in handling OxGauss matrix constant.
Fixed redefinition error when using OxGauss lcg file.

This file last changed .