[arch-dev-public] devtools-0.6.4 release

Hi Devs, I just pushed the new devtools to [testing]. The major thing in this release is that in combination with the new db-scripts your staging directory only needs to look like staging/{core,extra,testing}. No need for *64 directories (get that from the package name) and add/del directories are no more (db-remove is used for removing packages now). Allan