Correct previous commit.
Merge branch 'debug'
Correct typo.
Be absolutely sure that it will work in any case...
Print failed ports only if there are some.
Calculate order and dependencies for bulk before starting
Consistency.
Sort.
Merge branch 'debug'
Incremental upgrade (with -k) for bulk
factorize package building between bulk and testport

both bulk and testport use the same function to build packages.
both calculate dependencies and order them and build them one by one
while here create a injail help to avoir typos in jexec...
return 0 if the package is already installed
genpkg now work the same as bulk and testport
No more bulk snapshot to remove
Introduce new AGRESSIVE_DEP_TRACK option
Add a zsh completion file.

  * This is preliminary work, needs to be reviewed by bapt & others.
install zsh completion if zsh is on the system
Fix completion of -d and -o
No need for custom pkgdbdir
Speed up things avoiding make missing