2.0.0

• use crash numbering gothic font and tweak vertical offset, especially for Firefox.
• remove redundant and unnecessary width / right style in bar width
• align class name ( .lock-line to .line.lock, .ptr to .line.p )
• tweak stylus source code for better readability
• add crashing-number default font for consistent size.
  • use ldrs-default-font for placeholder and easier plug-play.
• add font.styl which inline font directly.
• support range slider and custom variables for styling