v0.5.8

Quadmath v0.5.8

Diff since v0.5.7

Closed issues:

• The macro @assume_effects is no longer defined (#60)
• Method ambiguities of Float128 constructor suggested by Aqua.jl (#61)

Merged pull requests:

• Simplify library logic on MacOS (#59) (@simonbyrne)
• remove default constructor, fix ambiguities (#62) (@simonbyrne)