Increased minSdkVersion from 15 to 16
Increased minSdkVersion from 15 to 16

In build.gradle
  Increased minSdkVersion from 15 to 16 in order to address:
    "Manifest merger failed : uses-sdk:minSdkVersion 15 cannot be smaller"
  Error when building using gradle for android.

priteshrnandgaonkar/react-native-call-detection,priteshrnandgaonkar/react-native-call-detection,priteshrnandgaonkar/react-native-call-detection