Merge pull request #22 from shortcut/master

Fix memory leak, activity was retained during initialization

Merge pull request #21 from shortcut/master

Update release note

Merge pull request #13 from shortcut/master

fix twa issue

Merge pull request #12 from shortcut/master

update readme for twa

Merge pull request #9 from shortcut/master

Version 4.1.1

Merge pull request #8 from shortcut/master

Fix the bugs causing the sdk not to work properly

Merge pull request #3 from kantarsifo/release_4.0.1_rc

Release 4.0.1

Remove extra debug logs.

Updated minSdk as 14