fl_umeng 2.2.0

umeng plugin for flutter, only Android and IOS are supported

[2.2.0]

• remove instance , direct initialization
• update gradle version
• update kotlin version

[2.1.1]

• add setDebugWithCrash

[2.1.0]

• add UMAPM
• add Crash API

[2.0.0]

• add Singleton Pattern
• upgrade Android Gradle

[1.1.9]

• upgrade Android Umeng SDK version
• add platform restrictions

[1.1.8]

• modify the return parameter to be non null
• update Android version

[1.1.7]

• update Android com.android.tools.build:gradle version
• remove AndroidManifest.xml minSdkVersion
• replace jcenter() to mavenCentral()

[1.1.6]

• Update umeng new branch build.gradle

[1.1.5]

• simplify Android proguard rules

[1.1.3]

• add doc
• add return parameter
• update sdk version

[1.1.1]

• Modify method name
• Perfect doc and example

[1.0.0]

• update flutter 2.0

[0.0.6]

• remove shell file

[0.0.5]

• simplify Android registration
• modify method name

[0.0.3]

• fix ios podspec
• add README.md

[0.0.1]

• create