Fix test complaining [: -eq: unexpected operator
Add more information in README
WRKDIRPREFIX is now non-default, a could be a mdmfs
CUSTOMCONFIG allow to append a given make.conf files to the jail make.conf
Add installation from package at the end of test_ports.sh
Fix WRKDIRPREFIX stuff

- Use /wrkdirs which is created and configured when we create the jail
- Fix unmounting the memory file system when it is not mounted
Double the ">" to distinguish from PT output.
Remove unused DEPLIST add a message to prevent user when packaging dependencies
Merge branch 'master' of etoilebsd.net:poudriere
double the last '<'
Add a new command genpkg to create a package
Add a new -n option to avoid using a custom prefix
Add msg() and msg_n() functions
Add the possibility to run commands for a given jail
Add a new command bulk which all building a set of packages
Fix typo

Reported by: Philippe Pepiot
make sure the packages directory exists
Another tiny typo
Stop running jail before erasing it
test jail start failures, and use of the IP
Remove the ugly gnuesie introduced
useless use of awk