Merge some recipe updates

recipes/ghub.rcp

@@ -1,4 +1,5 @@
 (:name ghub
        :type github
        :description "Minuscule client for the Github API"
-       :pkgname "magit/ghub")
+       :pkgname "magit/ghub"
+       :depends (graphql treepy))

recipes/graphql.rcp

@@ -0,0 +1,4 @@
+(:name graphql
+       :description "GraphQL.el provides a set of generic functions for interacting with GraphQL web services."
+       :type github
+       :pkgname "vermiculus/graphql.el")

recipes/modern-cpp-font-lock.rcp

@@ -0,0 +1,4 @@
+(:name modern-cpp-font-lock
+       :description "Syntax highlighting support for \"Modern C++\" - until C++20 and Technical Specification."
+       :type github
+       :pkgname "ludwigpacifici/modern-cpp-font-lock")

recipes/treepy.rcp

@@ -0,0 +1,4 @@
+(:name treepy
+       :description "A set of generic functions for traversing tree-like data structures recursively and/or iteratively."
+       :type github
+       :pkgname "volrath/treepy.el")

recipes/vcl-mode.rcp

@@ -1,6 +1,6 @@
 (:name vcl-mode
        :description "Syntax highlighting for Varnish Command Language"
        :type http
-       :url "https://www.varnish-cache.org/svn/trunk/varnish-tools/emacs/vcl-mode.el"
+       :url "https://raw.githubusercontent.com/ssm/elisp/master/vcl-mode.el"
        :features vcl-mode
        :localname "vcl-mode.el")