many updates.
set Org-mode tags font.
view Org-mode inline images.
view Org-mode inline images with scale width.
add a way (iimage) to show org-mode inline images.
add a custom function to insert key code in Org-mode.
stop auto-complete in org skeleton strings like: <s, <e.
set option to open directory with org root by default.
add ruby-mode into which-func-mode to show function definition.
add rspec-mode for Ruby RSpec.
disable rinari temporary.
update Lisp dialects list.
add which-func-mode to show programming language function definition.
add more comment annotation keywords.
disable eshell startup launch.
add eldoc mode for Emacs and Emacs Lisp.
setup ido options.
enable flx-ido package to add flex search into ido.
add smex into ido.
update auto-complete settings etc.