Users shouldn't use tty read nor write directly, they should always use io or term. But...it is messy to try to hide these methods as private methods in the io library, so I'll just have to check the io tty-ness just in case
LS_COLORS now respects linux style ansi code list, and /bin/ls has been updated to respect that
cursor blinking ws being reset too often that has been fixed
cyan ideally should be 0x00ffff, but that colors becomes green when switching bit depths. Thus, openos will use 0x00B6FF for ansi code for cyan
fixed some vt100 color list parsing
* huge terminal performance boost
* echo -e option, interpret backslashes
* favor io.write instead of print on low level code as print is slightly more memory expensive
* use vt100 ansi color coding for PS1
* use tty as std io back end stream
* consolidate buffer delay code
* add ctrl+backspace and ctrl+w options in io.read
* delay load more
* term code cleanup
* add buffer:size(), returns size of pending data on the stream
* memory free 59k
* openos 1.6.7
More memory savings, significant boot time savings
**Memory Savings**
The largest library in terms of cost in bytes in 1.6.5 was /lib/filesystem. Most of this library is not needed for boot, and in 1.6.6 the library is half loaded for boot with a delay load of the rest of the library when needed. There are also other minor memory improvements, see **Changes** for details
**Boot Time**
This update also introduces a newly written /bin/sh.lua that takes advantage of a common stdio system. This work was primary done to reduce memory needed to load the shell. However, during development of a simplified /bin/sh, I found that the /bin/source, /etc/profile, and /home/.shrc feature added to openos 1.6 had a significant boot time cost. I began optimizing /bin/source heavily and found that I could not make sufficient speed improvements due to the nature of how shell commands execute. Thus /etc/profile has been removed in favor of /etc/profile.lua, a script that sets up the environment the same but as a lua script. ~/.shrc is still honored if it exists on a system, and is sourced (/bin/source) as a set of shell commands. This change speeds up boot time from floppy by 3s, and on hdds by 1s.
**Possible Breaking Changes**
/etc/profile has been moved to /etc/profile.lua, but /home/.shrc is still sourced as shell script commands.
**Changes**
* /bin/sh.lua rewrite that takes advantage of standard io and uses the new /etc/profile.lua shaving 6s off boot time
* /bin/source.lua improve performance by reducing the number of processes created
* move /etc/profile to /etc/profile.lua and recode the actions in lua-form.
* move all ~/.shrc actions to /etc/profile.lua for performance reasons
* move motd to start of /etc/profile.lua to get the shell display as soon as possible
* update greetings that referenced /etc/profile to properly refer to /etc/profile.lua now
* update openos version to 1.6.6 to respect the impact of these changes
