Wifi Key View v1.7

Changes:

• Fix layout: about view was not showing version number

merge lots of maintenance #5 thx @TacoTheDank

• Delete generated files (that's making your commit history an absolute nightmare to go through (and I don't usually even particularly care if a commit is kinda dirty or large)), and added them to .gitignore
• Android Studio 3.1.0 -> 3.2.1
• Gradle 4.4 -> 5.0
• Support and target Android Pie
• Java 1.8 compatibility
• Zxing core 3.3.0 -> 3.3.3
• Junit 4.12 -> 4.13-beta-1
• Fixed English in README.md and strings.xml
• Add another tested device to README.md (mine)
• Added Google Play Store badge to README.md
• Migrate app to appCompat
• Migrate to AndroidX
• Set minifyEnabled to true (1,798 KB -> 1,185 KB)
• Reformat code

Wifi Key View v1.6

Changes:

• add In-App donation
• some fixes
• gradle updates

Wifi Key View v1.5

This is the Oreo release!

Changes:

• more places for the wifi config files added
• added support for wifi xml since the Oreo update
• changed the way how the app ask for root to prevent crashes