Version 1.2

Added

• 2 new water units
  1. Troy Pounds (t lb) #67
  2. Pennyweight (dwt) #66
• 2 new coffee units
  1. Troy Pounds (t lb) #67
  2. Pennyweight (dwt) #66
• --grind argument #64
• Grind upper limit #64
• Grind lower limit #64
• check_grind_limits function #64

Changed

• README.md updated
• METHODS.md updated