Update version to 1.1.2 in docs

Commit for release 1.1.2 with flink 1.10

Commit for release 1.1.2 with flink 1.9

Commit for shaded libraries release 0.1

Adapt enum type params in quantile, distance and decision tree. see a…

…libaba#67

Commit for release 1.1.1 with flink 1.10

Commit for release 1.1.1 with flink 1.9

Modify the Chinese and English documents of QuantileDiscretizer, Oneh…

…otEncoder, Bucketizer.

Modify the adult example in pyalink

See alibaba#51

Commit for release 1.1.0 with flink 1.10

Commit for release 1.1.0 with flink 1.9