0.6.0-dev.1

Update changelog

0.5.8

Update version.

0.5.6

Changelog

0.5.5+1

Update version.

0.5.5

Merge pull request #326 from AlexV525/master

Add `merge` to `FilterOption` and `FilterOptionGroup`

0.5.4

Update version

0.5.3+1

Update version and changelog.

0.5.1

Update to 0.5.1

0.5.1-dev.8

Update changelog

0.5.1-dev.4

Merge pull request #263 from CaiJingLong/clean-up-android-code

Clean up android code