v0.2.2-edu

Merge branch 'master' into edu-master

* master:
  fix gradle deprecations
  bump gradle plugin to 1.6.9
  bump gradle to 6.0.1 - supports JDK 13
  bump jcardsim version to safe one
  bump SDK libs

# Conflicts:
#	applet/build.gradle

v0.2.1

• JC SDK default version is 2.2.2
• Javacard Gradle plugin updated to 1.5.7
• JCardSim repository changed

v0.2.0

v0.2.0-edu