fix ack command on debian
Merge pull request #121 from victorklos/fix_debian_search_issue_120

fix ack command on debian
fix typo in debian search fix
Merge pull request #122 from victorklos/fix_debian_search_typo

fix typo in debian search fix
update rbenv.zsh according to manpage
Merge pull request #123 from victorklos/rbenv_inclusion_per_docs

update rbenv.zsh according to manpage
Update the me method for general use
Only call rbenv init if installed
Merge pull request #126 from jacobwg/no-fail-without-rbenv

Only call rbenv init if installed
Merge pull request #125 from jacobwg/generalize-irbrc

Update the me method for general use
Merging upstream from Holman
Missed two upstream changes