This little script will look at your current working directory and its
parent directories to source local configuration files (very useful for
Python projects, or the way I build TC with a local PATH pre-pended).
It works relatively well but still is a very fragile solution that
depends on the order in which the shell has sourced its files. Because
the Termite script kept erasing the previous PROMPT_COMMAND value for
Bash I had to change to source it at the beginning of my configuration
file.
