Added terminus font and urxvt documentation.

How to use terminus and urxvt and still get the powerline glyphs .
Add cpu_load_percent colors to tmux

Definitions for cpu_load_percent segment colors and gradient where missing
from default tmux color definitions, rendering this segment unusable for tmux
"out-of-the-box".
Merge pull request #780 from pshchelo/cpu-load-tmux

Add cpu_load_percent colors to tmux
Port spotify mac script from tmux-powerline
Merge branch 'ericboehs-develop' into develop

Fixes #778
Do not use sys.stderr for logging
Merge branch 'no-sys.stderr' into develop
Move NowPlaying._run_cmd to powerline.lib.shell.run_cmd, make asrun use it
Remove asquote function for it being used nowhere
Check for asrun() returning None
Merge branch 'lib-shell' into develop
Recreate args dictionary with str() arguments, use closures

Fixes #776
Merge pull request #781 from ZyX-I/segment-calls

Recreate args dictionary with str() arguments, use closures
Vim: add window_title function, used in quickfix theme

This is used to display the window title of the quickfix window. Both
Syntastic and Vim use this. See w:quickfix_title.
Make window_title work in older vims
Add window_title group to solarizedlight colorschem
Merge branch 'vim-window-title' into develop

Closes #703
Add &ts setting and comment regarding .local.vimrc usage
Merge branch 'local.vimrc' into develop

Ref #314
Add i3 bindings and segments