additional tmux aliases
Fix chruby plugin to not complain if chruby is *not* installed
Throw an error message when $WORKON_HOME is not set

Took me a while to figure this one out, and I have a default installation of virtualenvwrapper -- this is a soft fix, just put an error message. But perhaps the fix should be to use the default value `~/.virtualenvs`.
Fixed output issues webith websearch plugin.

- if user has rm set as an alias to 'rm -i' user is prompted to whether to
  remove the nohup.out file.

 $ ddg fools
	nohup: ignoring input and appending output to ‘nohup.out’
	rm: remove regular empty file ‘nohup.out’?

- if output redirected to a file nohup will not create nohup.out and rm is
  unecessary.
Added Yii2 command completion
Add yii2 readme
mira theme shows active node, ruby and java versions
added node- before node version for consistency
Updated Yii2 command completion
Merge pull request #3397 from peteches/master

Fixed output issues webith websearch plugin.
Merge pull request #3352 from benjaoming/virtualenvwrapper_workon_unset

Throw an error message when $WORKON_HOME is not set
Merge pull request #3338 from eripa/chruby_fix

Fix chruby plugin to not complain if chruby is *not* installed
Merge pull request #3146 from typekpb/tmux-aliases

additional tmux aliases
Merge pull request #3404 from ekaragodin/master

Added Yii2 command completion
Merge pull request #3407 from rawberg/mira-theme

mira theme shows active node, ruby and java versions
Respect original PATH definitions on install

The exporting of PATH as a fixed string would clobber any system-wide
paths added to env after installation. Instead, we now read any existing
PATH exports from previous config files and copy those from the user's
bash config, or else default to a basic prepend-only example that
respects the system environment.
Use sed instead

This needs the extra newline character defined in a variable because
shells treat the ${} expansion differently for replacing newline characters.