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.

Added js_ver().
Changed value that bbs_ver_num() returns (revision starts at 0 rather than 'A').

Added JavaScript version info.

Improved responsiveness of event_thread() while still using node_sem_check to determine semaphore file checking frequency.

Fixed uninitialized pointer free (usrsub[i] and usrdir[i]) if a message group or library is configured by no sub-boards or directories are configured.

getting chat_settings property was returning laston value.