Travis: always do "apt-get -f install"
just in case, to fix broken packages
Travis readability: re-org flags
Travis: emacs22-bin-common needs --force-depends
it appears to misread the architecture of the emacs22-common package
travis no longer wants global env in allow_failures
travis correct i386 emacs 22 deps
doc/comment
update support for 24.3
doc/comment
update support of emacs devel snapshot