Tweak.
Merge branch 'dev_setup'

Conflicts:
	setup.sh
Fix texlive-lang-cjk bug and rm gnome-colors dir.
Change vim-markdown from tpope's repository to gabrielelana's one.
Update spell check directory.
Improve setup.sh to install vim plugins.
Merge branch 'dev_setup'
Implement to install chormium.
Merge branch 'dev_setup'
Improve spell check directory.
Merge branch 'dev_vimrc'
Improve spell check directory.
Merge branch 'dev_vimrc'
Merge branch 'dev_vimrc'
Fix gem executable directory path.
Improve spell check directory.
Install zsh-completions.
Merge branch 'dev_zshrc'
Add setting to push.default matching.
Add new aliases.