zsh: add doi2bib function
zsh: fix doi2bib line breaks
zsh: add missing slash in unisel function directory path
Merge commit '5f52'

* commit '5f52':
  zsh: add missing slash in unisel function directory path
  zsh: fix doi2bib line breaks
  zsh: add doi2bib function

Conflicts:
	.zsh/zsh-functions