hmstimer 0.1.0

• Hard deprecated start argument to tmr_reset().
• Added tmr_format().
• Added tmr_round(), tmr_floor() and tmr_ceiling().
• Switched to tidyverse style error and warning messages.

hmstimer 0.0.2

• Replaced hms::as.hms with hms::as_hms for hms 0.5.0.

hmstimer 0.0.1

• Added a NEWS.md file to track changes to the package.