init.el: tweak check-large-file-hook, add reopen-killed-buffer command
init.el: don't set default major mode, tweak check-large-file-hook
init.el: use `dolist` to enable a function/mode for multiple mode-hooks, clean require using autoload, add cperl related configs
snippets: add/modify/delete snippets in emacs-lisp-mode
snippets: add "# -*- mode: snippet -*-" at the top of snippet, remove useless snippets of emacs-lisp-mode, another little tweaks
init.el: variable of display-time-24hr-format, add change-inner, C-c <tab> to complete-files and other little tweaks
elpa: add change-inner and updates
init.el: add more details for undo-tree