Buffer::PeekAll resized the destination and then appended, so it returned twice the
data with zeros in front. No callers today.
The assert dialog's caption was a function-local static, so it froze at whichever
kind of assert fired first in the session - a later Critical Assert would still be
titled 'Debug Assert'. Made it a plain const char *.
containsNoCase passed a possibly-negative char to std::toupper, which is UB for
anything but EOF; non-ASCII bytes get here from ELF symbol names.
ApplyDeadzoneXY's circular path lacked the deadzone >= 0.99f guard its own sibling
ApplyDeadzoneAxis has one function above, so it divided by ~0.
Henrik Rydgård
e0b7076b12