[Initial build system.
Aaron Denney <wnoise@ofb.net>**20050217200831] 
[License and motivation.
Aaron Denney <wnoise@ofb.net>**20050218052825] 
[Common code.
Aaron Denney <wnoise@ofb.net>**20050218053102] 
[Working yes.  Too simple for GetOpt.
Aaron Denney <wnoise@ofb.net>**20050218054554] 
[Mostly working cat.
Aaron Denney <wnoise@ofb.net>**20050218055021] 
[Working echo.
Aaron Denney <wnoise@ofb.net>**20050218060517] 
[Echo code notes.
Aaron Denney <wnoise@ofb.net>**20050218144425] 
[cut cowpiles
Aaron Denney <wnoise@ofb.net>**20050220161027] 
[mostly working column
Aaron Denney <wnoise@ofb.net>**20050220161317] 
[first cut of rev
Aaron Denney <wnoise@ofb.net>**20050220161450] 
[first cut of tac
Aaron Denney <wnoise@ofb.net>**20050220161512] 
[env dumps
Aaron Denney <wnoise@ofb.net>**20050220164006] 
[env sets env
Aaron Denney <wnoise@ofb.net>**20050220172550] 
[added error behaviour example
Aaron Denney <wnoise@ofb.net>**20050220181859] 
[paste: mostly works
Aaron Denney <wnoise@ofb.net>**20050220182352] 
[utils error combinators.
Aaron Denney <wnoise@ofb.net>**20050220183335] 
[fixes to lesser used recipes
Aaron Denney <wnoise@ofb.net>**20050221070959] 
[fix split_either
Aaron Denney <wnoise@ofb.net>**20050221080321] 
[Return filenames with errors from withFile.
Aaron Denney <wnoise@ofb.net>**20050222040230] 
[rev: working, including file reading and error reporting
Aaron Denney <wnoise@ofb.net>**20050222040547] 
[cat: files work
Aaron Denney <wnoise@ofb.net>**20050222042744]