Merge pull request #181 from yukunlin/solarized-command-colors

Add 'enable_command_color' option for solarized.vim

doc/airline-themes.txt

@@ -262,6 +262,11 @@ To enable it: >
 Changes inactive window panes to have a dark bottom border instead
 of light by default. To enable it: >
     let g:airline_solarized_dark_inactive_border = 1
+<
+                                        *g:airline_solarized_enable_command_color*
+
+In command mode, set the status line to its own color (violet). To enable it: >
+    let airline_solarized_enable_command_color = 1
 <
                                                         *g:solarized_base16*