Add anything-git-grep recipes

https://github.com/mechairoi/anything-git-grep
Add helm-git-grep recipes

https://github.com/yasuyk/helm-git-grep
Add key-combo recipes

https://github.com/uk-ar/key-combo
Merge pull request #816 from yasuyk/key-combo

Add key-combo recipes
Add helm-dired-recent-dirs recipe

https://github.com/akisute3/helm-dired-recent-dirs
Merge pull request #817 from yasuyk/anything-git-grep

Add anything-git-grep recipe
Merge pull request #818 from yasuyk/helm-git-grep

Add helm-git-grep recipe
Merge pull request #819 from yasuyk/helm-dired-recent-dirs

Add helm-dired-recent-dirs recipe
Add mouse-slider-mode
Add crab
Add elixir-mix