Merge pull request permissions-dispatcher#251 from hotchemi/prepare_2…

….3.1

Bump to 2.3.1.

Merge pull request permissions-dispatcher#237 from hotchemi/fix_test

Fix compile error and polish layout.

Merge pull request permissions-dispatcher#229 from hotchemi/prepare_2…

….2.1

Prepare for 2.2.1.

Merge pull request permissions-dispatcher#204 from hotchemi/issue192

Support maxSdkVersion

Prepare for 2.1.3.

Prepare for 2.1.2.

Prepare for 2.1.1.

Prepare for 2.1.0.

Prepare for 2.0.9.

Prepare for 2.0.8.