Release 1.3

- Added support for Command-T plugin statusline.
- Added support for csv files (displays current column and column header if
  applicable).
- Added support for capslock plugin.
- Added support for `ZLE_RPROMPT_INDENT` in zsh bindings.
- Made tmux bindings respect powerline configuration (powerline colorschemes and
  left dividers configuration).
- Made tagbar segment use caching.
- Fixed build in case no C compiler was found.
- Fixed old Vims support.
- Fixed non-unicode directories support in non-zpython shell bindings when using
  Python-2.
- Fixed tcsh prompt escaping: also escapes the bang.
- Various improvements useful for debugging.
- Improved style of help messages.
- Added manual pages.