#13 Double-quotes in test description break in editcase

[Keith Tyler]

When editing a case where the test description contains
double-quotes, the description field textbox is only
populated up to the first quote character. (The
double-quote in the output terminates the string in the
HTML attribute.)

The fix is in tcfunc.fil, in the caseform() function,
by adding htmlspecialchars() around $tcinfo["descr"]
(on line 202).

Incorporate into next release.