Add growl-for-emacs recipe

Updated version of growl.el that supports coalescing of notifications
with =-d= option of =growlnotify=.
recipe: auto-complete-auctex: Package depends on `yasnippet` and `auto-complete`
Added a recipe for https://github.com/lewang/ws-butler
Merge pull request #1894 from SkydiveMike/growl-for-emacs

Add growl-for-emacs recipe
Merge pull request #1895 from akopytov/master

Added a recipe for https://github.com/lewang/ws-butler
Make htmlize use emacsmirror instead of http.

Need this to be usable without el-get-allow-insecure.
Add scpaste recipe.
Merge pull request #1896 from technomancy/scpaste

Scpaste
recipe: rw-hunspell
recipe: sauron: Register autoload for `sauron-toggle-hide-show'
update outdated github package address
Merge pull request #1901 from ripple0328/master

update outdated github package address of ack-and-a-half
Use 'path-separator' for splitting/joining environment variables

This is more portable than current approach, which leads to errors in
windows, since it uses ':' in drive names and ';' to separate entries in
environment variables
Merge pull request #1905 from iqbalansari/master

Use 'path-separator' for splitting/joining environment variables
add recipe: add ac-js2 recipe
Added dash and s as dependencies for ag.
Merge pull request #1906 from ripple0328/master

add recipe: add ac-js2 recipe
Merge pull request #1907 from Wolfy87/feature/ag-dependencies

Added dash and s as dependencies for ag.