Also fixes bug with tlast field (supposed to minutes, not seconds).

Move internal sysop page (random tones) from getkey() to inkey() and replaced the short tones in msgabort() (every 100th call).

Changed strip_ctrl() and strip_exascii() to return the modified string.

Changed strip_ctrl() to JUST strip control chars and created prep_file_desc() to do what strip_ctrl used to (much more than just strip ctrl chars).
Updated crc32() to auto-detect ASCIIZ string length if no length is specified.
Updated various string loops to check for NULL rather than using strlen().

Added 32-bit CRCs for version and copyright strings to defeat the lame-o hex0rs.

JavaScript context is now only created when needed. This should improve performance (slightly), memory usage, and reliability (hopefully).

Updated mail-abuse.org DNS and HTTP server addresses.

TEXT.DAT  lines are now allocated with one additional byte and zero-filled for the new YNQX line (was just YN), for backwards compatibility.

Eliminated local sysop page sound (random tones) from msgabort() function (slowed down menu display too much).

Bug fix: f.misc field was being re-initialized causing anonymous uploads to be recorded as normal uploads.

Added private structure to hold last error, socket descriptor and indication for externally opened sockets.