add fish shell support
e8b08985 introduced a bug with github shorthand
The dash has to be at the end of the regex, _-\. is parsed as a range.
Added interactive testing shell
This can be quite useful for things like completion testing etc.
Fixes #72.
zsh auto-completion now suggests files in the current working directory for tracking
move homeshick.fish to project root
Merge pull request #76 from Mic92/master

add fish shell support
Fix fish shell install command
Merge branch 'master' of https://github.com/andsens/homeshick into upstream-changes

Conflicts:
	README.md