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On an OS X laptop, the variable `$HOST` changes a lot depending
on what wifi network you're connected to.  This causes a lot
of `~/.ssh/environment-$HOST` files to be created and
causes multiple ssh-agents to created.

Instead, use `scutil --get ComputerName` to get something
more stable.

Fixes #2467 tab completion scrolls back in terminal when using bureau

Avoid evaluating special chars in $LINE on title command (fixes #2234)

Catimg plugin

theme agnoster: update characters to match latest powerline fonts

Fix install.sh compatibility with /bin/sh

ruby-gems aliases

Updated wd plugin to v0.3.0

Added Yii basic command completion

git-prompt (gitstatus.py) plugin fix

Fixed sublime plugin behaviors.

gitfast: update to upstream v1.8.4

Improve oneline logs

unify and update golang plugins

highlight the username when root

pip: Add support to command "show"

Add alias to rails plugin

rbenv plugin: don't clobber existing RBENV_ROOT & follow Homebrew's default behavior

Added simulator alias for Xcode plugin

Added/modified some useful aliases.

new faster SVN plugin

- Fixed subl search path order in Mac because Sublime Text 3 is named
  Sublime Text.app by default instead of Sublime Text 3.app and they are
  mostly likely to be placed in /Applications instead of
  $HOME/Applications.
- Fixed sublime text binary path in Linux. The sublime_text binary
  installed by Ubuntu installer is placed in /opt/sublime_text/sublime_text
  instead of /usr/bin/sublime_text.
- Use zsh's built-in process detach syntax instead of nohup.

It is often required to start simulator without Xcode.

Fix remaining broken URL in gitignore function

Update gitignore.plugin.zsh

Depending on when the path is declared this solution would work in any case

Fixes #2182