last-working-dir: Use >! to overwrite $cache_file

Use ">!" to overwrite $cache_file in case noclobber is set. 
When noclobber is set, zsh will not allow the use of ">" to overwrite
the contents of a file. Instead, it displays a "file exists" error.
By using ">!" instead, we tell zsh to overwrite the file without
complaining.
Fix whitespace

That's what I get for using GitHub text editor and not checking tabs.
allow setting a custom HISTFILE before oh-my-zsh is loaded
add ssh-agent option to set default lifetime of identities

By default, ssh-agent stores identities forever. It has an option to
set a maximum lifetime for identites (useful to expire passphrase protected
keys). Allow this option to be set using:

zstyle :omz:plugins:ssh-agent lifetime <time>
Alias for commit and commit all with amend

For the lazy and forgetful. Don't worry, a bang is fine in an alias and completion.

:tada:
Use --no-rehash option for faster startup
Added golang completion support from golang.org
Fix grails plugin

Fix problem with "basename" command error "extra operand" (do not work with array)
Use new style of rails command.
IMPROVED: untracked file status has priority over modified (ie: if you have both modified and untracked files, your prompt will be red indicating the presence of untracked files)
Prefixing tmux wrapper function with '_'.
Exporting path to fixed config as a global variable.

This is done to fix compatibility with antigen.
To keep with convention, the variable has been renamed to be in all caps.
Merge pull request #1671 from lifinsky/master

Fix grails plugin
Merge pull request #1669 from desimone/master

support for Go (golang) completions
Merge pull request #1668 from sheerun/patch-1

Use --no-rehash option for faster startup
Merge pull request #1664 from marcel-wolf/master

add ssh-agent option to set default lifetime for identities
Merge pull request #1663 from flavius/master

allow setting a custom HISTFILE before oh-my-zsh is loaded
Merge pull request #1650 from ishtu/master

add vncviewer function (using "open" functionality)
Merge pull request #1638 from RomainBelorgey/master

Use completion if file Capfile
Merge pull request #1524 from bonifaido/master

Maven plugin completion fix for other (than Java) JVM languages and/or missing test cases folder