setting secondary charset

                 Enable         Disable
Alt Charset     CSI[?31h       CSI[?31l
Disable Bright  CSI[?32h       CSI[?32l
Bright BG       CSI[?33h       CSI[?33l

1) The ability to make attribute bit three select a second character set
2) The ability to make the blink attribute toggle background intensity
3) The ability to make attribute bit three NOT select high intensity
4) More control over the cursor than just three constants

CTerm support to follow using private set mode parameters.

no real limit to the number of characters in a logical line since an
infinite number of ^A codes can be included.  Someone (Angus) has put
messages in the wild with a line containing more ^A code bytes than data
bytes.  :-)

for text searches.
The message subject is now converted to uppercase to compare case-
insensitively.

Hopefully I did this right (Deuce?).

Previously, the hard CR was retained, and the wrapped test was added to the
beginning of the next line.  Now the hard CR is cleared from the original
line and set on the newly inserted line.  We also need to redraw lines
after the inserted line now.

count of lines after to operation to erase on-screen leftover lines.

Fixes bug reported by DigitalMan

Makefiles for *nix only so far.

use the constants.

Move dropfile parsing into separate file.

ciolib output.

Use ZERO_VAR instead of memset().

should work correctly.

Allow the data_len to be specified as -1 to use strlen() on data.

doorway mode.