When the user is asked to update oh-my-zsh it says "[Oh My Zsh] Would
you like to check for updates? [Y/n]:". When the user agreed to update
the next text would say "Upgrading Oh My Zsh" which is inconsistent
with the question.

Nicer formatting of ember aliases in README

Update frontcube.zsh-theme

Git: move current_branch() to core

Fixes #4085: core -> plugin dependency issue.
Rename it to git_current_branch for clarity that it's git-specific.
Update all plugins that were calling it to use new name.
Fix variable leaks by making more variables in lib/git.zsh local.
Have lib/git.zsh use [[ ]] instead of [ ] everywhere.

Add 'rake stats' alias.

agnoster theme: stronger warning about changing SEGMENT_SEPARATOR character

Add branch plugin

archlinux: use $+commands instead of 'command -v' in a subshell

Default to using terminfo to set the terminal title

"fishy" theme: Shorten path .foo to .f, not .

Actually replace the value of the environment variable $HOME with
"~" instead of appending the tilde in front of the prompt.

Currently, the title is only set on supported terminals (i.e. xterm,
urxvt, screen etc.). Using terminfo entries to set the terminal title
adds support for many more terminals.

[Composer] redirect stderr to /dev/null for completion commands

Update link to git completion

Close #3627

This change enables UP-arrow and DOWN-arrow full-line history completion.
For example, if you write `git clone` and press UP:

- Before this change,
  it will use the last command that starts with `git`.

- After this change,
  it will use the last command that starts with `git clone`.

znt: faster startup of tools using colorifying (e.g. n-history), optimized heap usage for older Zsh's

Make spectrum_ls implementation consistent with $FG and spectrum_bls

Close #4193

This avoids an ordering dependency between this and the vi-mode plugin.

Hide spectrum.zsh var values to avoid junky output to terminal

The alias was removed in #3564. A couple of users were using
it, so I'm adding it back.

common-aliases: handle "dev" versions in version check

Recognize Firefox addon and Android packages.

Use actual `commit --amend` command for Mercurial

Uses `is-at-least` instead of a numeric comparison hack, so versions with non-numeric bits like "4.5.0-dev5" don't throw errors.

Add Ecosia to web-search plugin.

The tilde character is not expanded when inside quotes. See https://github.com/robbyrussell/oh-my-zsh/issues/4668#issuecomment-162213379

Make code in lib/termsupport.zsh more readable

When the current path is /home/user/.config/doublecmd the prompt
now reads "/h/u/.c/doublecmd", not "/h/u/./doublecmd" as was the
case. This matches what the Fish shell does.

Enclose the Perl snippet in single quotes instead of double quotes.