LeapSeconds v1.1.0

Diff since v1.0.0

• Add reverse transformation via offset_utc_tai function.
• Fix mini-leap calculations for dates between 1960 and 1972.
• More rigorous testing.

Merged pull requests:

• Install TagBot as a GitHub Action (#3) (@JuliaTagBot)

v1.0.0 (2020-01-15)

Diff since v0.2.0

• Drop pre-release versions of Julia 0.7
• Improve performance by 50%

• Initial release