modify creation of default.cfg link to force creation if the
    symlink exists but doesn't point to a valid config [BZ# 741145]
    remove TZ from default environment [BZ# 754701]
    unbuffer output from --chroot command [BZ# 744761]
    added -debug stanzas in configs [BZ# 610823]
    report package contents of chroot after init [BZ# 736858]
    add _umountall() call to clean [BZ# 502922]
    updated release checklist overview and 1.1 checklist
    add code to tmpfs plugin to try a force umount on umount fail
    add 'lazy' option (-l) to umount
    prevent exceptions when showing installed packages on EPEL-4
    deleted unused (or cannot be used) configs
    from Davi Arnaut <davi.arnaut@gmail.com>
    set chroot environment variables from config files [BZ# 753179]