v0.5.3 : Fix crash

• Fix crash when fragment is null (affect legacy backstack)

v0.5.2 : Update Readme + Clean

• Remove JCenter
• Update README.md
• Clean code

v0.5.1 : Fix Build on JitPack with AGP7 and Java11

• Migrate to AGP 7.0.3
• Migrate sample App to Android 12
• Switch to Maven-Publish plugin
• Fix some Lint issues
• Disable log by default (may be enable in the Plugin constructor)