Reverse part of RDB's pedantic patch from rev 1.129 [r1105]: app

cursor and app keypad modes are now once again independently
switchable. The VT100 and VT102 manuals may have done it RDB's way
as he said, but xterm and rxvt disagree and at least one app depends
on the xterm way. It'll have to become a configurable option if
anyone has trouble with this.

git-svn-id: svn://svn.tartarus.org/sgt/putty@1495 cda61777-01e9-0310-a592-d414129be87e