页面进度条

Pace: http://github.hubspot.com/pace/

指定样式 type 和颜色 color，可选值已在配置中列出

# Progress Bar

# type: barber-shop|big-counter|bounce|center-atom|center-circle|
#       center-radar|center-simple|corner-indicator|flash|flat-top|
#       loading-bar|mac-osx|minimal
# color(default is blue): black|blue|green|orange|pink|purple|red|silver|white|yellow|
progressBar:
  on: true
  type: "minimal"
  color: blue