lookup: Makeover lookup configurations

Conflicts:

	.emacs/package_configs/init_lookup.el
Apply diff face if it was needed
Override gnus's keybind
Move windows's window before boot gnus
Update my keybinds
Add lookup(2)el package
Bind festival's keybidns
Use init_festival.el instead of package file
Move
Refactor
Add condition case statement
Move variable
Add my/festival command
Update my/festival-read-buffer command
Update gitignore

Conflicts:

	.gitignore
Add a snippet for snippet mode
Attach GOPATH before executing
Fix wrong regexp
Add autoload function
Avoid evil-mode before boot specified function