- add trap_add function by Richard Hansen
- make colorshell a trap instead of embedding it into PROMPT_COMMAND
- make history-sync a trap instead of embedding it into PROMPT_COMMAND
- add . /usr/share/bash-com as printable version (truncated or filled to 25 characters)
- don't log . /usr/share/bash-completion/bash_completion if it's a trap or a 'echo . /usr/share/bash-completion/bash_completion'/'echo 0'
- minor fixups to Equinox prompt
- set minimum terminal height for drawing 'arms' in Equinox to 16