fixed typo in tmux plugin
Merge pull request #1935 from mateitrusca/master

typo in tmux plugin
Fix ssh-agent plugin identities comment for using multiple identities.
Add knife_ssh command to make connecting to servers managed with chef easier
No cat, and hide errors for missing cache file
Merge pull request #1981 from trobrock/knife-ssh

Add knife_ssh command to make connecting to servers managed with chef easier
Merge pull request #1980 from awidegreen/upstream

Fix ssh-agent plugin identities comment for using multiple identities.
"autoload colors; colors;" crashes SSH session with "fatal error: out of memory"
Fix: https://github.com/Neal/dotfiles/blob/master/zsh/colors.zsh
See #1815