Add admin docs and Android admin scaffold

android-admin/gradlew

@@ -0,0 +1,25 @@
+#!/usr/bin/env sh
+
+##############################################################################
+##
+##  Gradle start up script for POSIX generated by Gradle.
+##
+##############################################################################
+
+app_path=$0
+
+APP_HOME=${app_path%"${app_path##*/}"}
+APP_HOME=$(cd "${APP_HOME:-./}" && pwd -P) || exit
+
+DEFAULT_JVM_OPTS='-Xmx64m -Xms64m'
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+if [ -n "${JAVA_HOME:-}" ] ; then
+  JAVACMD="$JAVA_HOME/bin/java"
+else
+  JAVACMD=java
+fi
+
+exec "$JAVACMD" $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS \
+  -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@"