Fix vim plugin path in Arch Linux packages
Add note about zpython branch

TODO: To be removed after (if) zsh maintainers accept the patch.

Refs #104.
Add modified_buffers segment

This segment returns a comma-separated list of modified buffers. The
segment is not enabled by default.

Closes #173.
Use functools.wraps on memoize decorator
Update sphinx configuration
Work around missing vim module when generating sphinx docs

Horrible solution, should be fixed asap.
Add docs for all segments
Don’t mess with hl()+contents

What does hl() mean? It looks like “highlight an empty string”, but is actually
“reset highlight style”. In addition if you are writing “hl()” function for new
renderer you need to care about “contents” variable (in two places!: None for
super() call and (contents or u'') after super() call) though function is
actually doing nothing with it. It is just inconvenient.
Use escape_hl_* variables for prompts deriving from ShellRenderer

This is faster then super() calls and also more convenient.
Fixes #142 just as well
Conflicts:
	powerline/renderers/bash_prompt.py
	powerline/renderers/ipython.py
	powerline/renderers/shell.py
	powerline/renderers/zsh_prompt.py
Clear highlight groups on ColorScheme event

Closes #196
Fixes #153
Fixes #194
Fix location of powerline.vim file

rm is uncommented because there is no “source_plugin” now.
Add more USE flags to gentoo ebuild
Add auto_rewrite method to pre_0_11

It raises error without this.
Move docs to readthedocs.org
Purge out constants from classes, lowercase TERM_24_BIT

Remove recursive import as well
Add support for italic and underline attributes in shell renderer
Add a way to specify renderer options on command-line, added tmux_escape

Note: tmux escaping does not fix things, on my system it produces
![Gap between ... and directory name](http://img-fotki.yandex.ru/get/6439/9151298.2/0_93b4c_5d9a317f_orig.png)
Fixes #199
Add screen_escape option

Refs #199.
Move weather condition codes into weather function
Move urllib_read/urlencode functions to lib