Update build.sh to work without SBCL environment variable defined.
Move CLX source code into the clx subdirectory in the .clx asd.
Spelling.
Add a cross-reference location history.
Add a return to the setpty function to eliminate the compilation warning.
Add hemlock checkpoint files .CKP to the .gitignore.
Switch to using the epoll multiplexer...select is hanging.
Convert terminfo commands to work with the new terminfo.
Fix the tiputs macrolet for tty init to return the string.