mrxvt Code

Fixed erroneous dependency on libexpat (xft-config messed up).

1. Fixed integer overflow
2. Changed default skipPages to 25.

When the user closes the mrxvt window, do not blindly send SIGHUP's and exit.
Instead send SIGHUP's to all childs, and wait for them to exit first.
The previous behaviour caused problems when childs produced output on receiving
SIGHUP (e.g. dtach).
Also, if some tabs don't exit within 2 seconds of receiving SIGHUP, warn the
user of the offending pid's.

BugFix: When execing processes in the background (via -blc or Exec macro), we
should waitpid() them when they are done. Otherwise they become zombies, and
clutter up the process tree. [This could be problematic with -blc, especially
if user produces lots of bells].
Also renamed "vt_died" to the more intuitive "ndead_childs".

When exec'ing commands (via bell command, or via Exec / NewTab), backslashes or chains of backslashes are only treated specially if they preceed a space. (See man page on -blc, and the Exec macro for complete behaviour).

Added Frederick to AUTHORS

Enabled bell throttling by default
If -vb is used, then disable -blc.

Fix (replace astr with cmd in src/init.c) build that breaks with the following error:
gcc -DPKG_CONF_DIR=\"/usr/local/etc/mrxvt\" -I. -I. -I.. -g -Wall -fPIC -I/usr/include -I/usr/include/freetype2 -I/usr/include/freetype2/config -I/usr/include -c init.c
init.c: In function `rxvt_async_exec':
init.c:3570: error: `astr' undeclared (first use in this function)
init.c:3570: error: (Each undeclared identifier is reported only once
init.c:3570: error: for each function it appears in.)

Tried to make %s expand to the selection even if it is not owned by mrxvt. But
did not understand the code, and gave up. Just formated some selection code
better :).

Added documentation about new word splitting, and updated menus / mrxvt.sample
to use this.