Merge pull request #799 from Sliim/helm-project-persist

Add helm-project-persist package.
Remove redundant :files spec from helm-project-persist recipe

See #799
Add recipes/auctex-latexmk
Add plenv package.
Add helm-spaces recipe

https://github.com/yasuyk/helm-spaces
Merge pull request #800 from tom-tan/auctex-latexmk

Add recipes/auctex-latexmk
Merge pull request #801 from karupanerura/plenv

Add plenv package.
Remove redundant :files spec from plenv recipe (see #801)
Merge pull request #802 from yasuyk/helm-spaces

Add helm-spaces recipe
Better method of showing archive-contents after building recipe

This removes a redundant "changed on disk" prompt when the file is
already open.
Added recipe for abc-mode.
Add melpa-upstream-visit recipe.
Merge pull request #803 from mkjunker/master

New recipe for package abc-mode.
Add mode-icons
Adding go-snippets to the list of recipes
Merge pull request #804 from laynor/add-muv-recipe

Add melpa-upstream-visit recipe.
Merge pull request #805 from toumorokoshi/master

package for go snippets for yasnippet.
Remove :commit and :files as requested here:
https://github.com/milkypostman/melpa/pull/787#issuecomment-18899705
Merge pull request #787 from gareth-rees/master

New package: p4.el
Add recipes/langdoc