update recipes from elpa
add emacs discover.el recipe
add emacs minimap recipe
add missing local-recipes/elpa
add missing local-recipes/emacswiki
fix org-html-paragraph advice
fix org-emphasis-regexp-components, to fix :

='=
fix org-mode link with Chinese characters
add advice for org-html-template,

to fix the problem when export with both :body-only t
and mathjax
org-mode settings, mostly export related
misc/uninteresting updates
merge upstream changes in git-cal