Use the I2P Android client library

The build script looks for the client library in Maven Central. It is possible              
to use a local .aar by placing it in a folder "aars" in the base folder, and
uncommenting the flatDir{} section in the base build.gradle.

app/build.gradle

@@ -24,6 +24,7 @@ android {
 }
 
 dependencies {
+    compile 'net.i2p.android:client:0.1@aar'
     compile project(':botejars')
     compile fileTree(dir: 'libs', include: '*.jar')
     compile 'com.android.support:support-v4:19.1.0'