Devel

• general refactoring: mostly on settings, ovary, i-workdir, i-eggs-config; produce: a check was added in ovary after launch mkiso, if the generation of the iso fail, eggs exit showing error;
• added a mountpoint on /home/eggs/mnt. This is usefull to can clone/remaster a system without sufficient free space. (Just mount your free partition inside /home/eggs/mnt. Example: sudo mount /dev/sdb1 /home/eggs/mnt before to run sudo produce); rewrote and checked routines for available and used space, in light of the ability to mount free partition under `/home/eggs/mnt``;
• a new function killMeSoftly() - hopefully safe - was created. The function check presence of binded dirs mounted on /home/eggs/mnt/filesystem.squashfs before to remove it or mounted partition on/home/eggs/mnt;