git-gutter-conf.el: change git-gutter:verbosity less verbose
flycheck-conf.el: disable emacs-lisp-checkdoc
auto-async-byte-compile-conf.el: fix auto-async-byte-compile-exclude-files-regexp
helm-gtags: use upstream
.globalrc: use pygments
gtags-conf.el: use add-to-list to tweak load-path
gtags-conf.el: add comment
helm-conf.el: remove unused (add-to-list 'load-path)
helm-gtags-conf.el: enable some keys