v1.2.0

Cbc v1.2.0

Diff since v1.1.1

Closed issues:

• (Heisen)segfault on Julia 1.6, x86 macOS (#199)
• Support MOI.AbsoluteGapTolerance and MOI.RelativeGapTolerance (#218)
• Support MOI.NumberOfThreads (#220)

Merged pull requests:

• Add support for MOI.AbsoluteGapTolerance and MOI.RelativeGapTolerance (#219) (@hannes-uppman)
• Add support for MOI.NumberOfThreads (#221) (@hannes-uppman)
• Skip segfaulting test on macos (#222) (@odow)
• Prep for v1.2.0 (#223) (@odow)
• Update README with support attributes (#224) (@odow)