1.13.0

Changes

• englighten.format_time() is now public
  • Formerly undocumented and only available in enlighten._util
• elapsed field for status bars now stops accumulating when the bar is closed (#66)
• Add FAQ entry to document limitation of progress bars to terminal height. (#68)
• Reduce instances of subcounters jumping forward and backward (#69)

Housekeeping

• Removed use of time.time() and time.sleep() from tests
  • Improved speed and stability when running in parallel
• Various updates to CI configuration