add submodule: ls_colors.
add submodule: zsh-completions.
add submodule: zsh-syntax-highlighting.
remove mdx_alias mdx_powerline.zsh-theme profile
add submodule: dircolors-solarized.
add submodule: on-my-zsh.
remove directory vimperator, all settings merged into vimperatorrc.
remove unfinished alias "unhide" from shell_alias.
add shell_common/functions.
add shell_common/osx/macvim.