#29 Fix: "Buffer Overflow in check_words()" bug report

[Soren Snehoj Nielsen]

Attached is a patch that fixes the "[ 1086623 ] Buffer
Overflow in check_words()" bug report.
In admin_commands.cpp::check_words() an error is
raised when text input is >100. However, you can /say
up to 128 chars.
This is fixed by introducing a MAX_SAY_LENGTH=128
constant.

[Soren Snehoj Nielsen]

unified diff - admin_commands.cpp & constants.h