Migrate to API 30 and AndroidX.
Follow Material Design. Specifically
1. Support Swipe to Refresh.
2. Add Floating Action Button.
0.3.3* Move away from deprecated APIs* Check certificates. Now we have legit certificates.0.3.2* workaround a bug in Android 4.1-4.1.2 (#38770)0.3.1* bug fix0.3.0* Dual pane mode on large devices* Signature selection & randomization* Target new SDK (android 4.2, r17)* Chinese translation* Introduce Fragment for components0.2.12* Smoother scroll on QMD* Gesture supportFor earlier changelog, seehttp://wiki.henryhu.net/wiki/Andwell