Tweak publishing codes.

- Specify annotation module info explicitly due to library module.
- Fix the way of publishing aar and remove dcendents:android-maven-gradle-plugin.

Apply bintray-release plugin for annotation module.

Prepare for 3.3.0.

Merge pull request permissions-dispatcher#463 from permissions-dispat…

…cher/prpare-3.2.0

Prepare for 3.2.0

Add skip_cleanup.

Merge pull request permissions-dispatcher#382 from permissions-dispat…

…cher/prepare_3.0.1

Prepare for 3.0.1 and tweak a migration guide.

Tweak.

Fix a bit.

Merge pull request permissions-dispatcher#287 from hotchemi/prepare_2…

….3.2

Prepare for 2.3.2.

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

….3.1

Bump to 2.3.1.