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.
Added autocompletion support for Elixir mix command
Fix symfony command completion 'permission denied'
In capistrano completion show also tasks without description
Updated gem plugin zsh completion (gem 2.0.3).
Merge pull request #1993 from zvirusz/patch-2

In capistrano completion show also tasks without description
Merge pull request #1994 from kennethgeerts/master

Updated gem plugin zsh completion (gem 2.0.3).
Merge pull request #1992 from jeromemacias/patch-1

Fix symfony command completion 'permission denied'
Merge pull request #1988 from jwarwick/mix

Added autocompletion support for Elixir mix command
Merge commit '5fcb6e1263e9fa7938e4ebfc03bf44aa624a5d7b' into ys_theme
opt: Optimized the performance.
add: Display of line number and shell level.
doc: Fixed a comment mistake.
plugins/git: missing compdefs and new aliases
activate virtualenvwrapper by default
Merge remote-tracking branch 'upstream/master'
updated bbenv

Signed-off-by: Gaetan Semet <gaetan@xeberon.net>