v2.0.0

MultiFloats v2.0.0

Diff since v1.0.4

Merged pull requests:

• Merge vectorization branch (#41) (@dzhang314)

Closed issues:

• Implement fully-unrolled renormalization loop (#3)
• Why warning about DoubleFloats allocation? (#32)
• bug: "clean" mode has worse accuracy than regular Float64 (#37)
• Wrong or outdated claim, and suggestion (#40)