Add admin docs and Android admin scaffold

android-admin/gradlew.bat

@@ -0,0 +1,21 @@
+@rem
+@rem  Gradle startup script for Windows
+@rem
+
+@if "%DEBUG%"=="" @echo off
+setlocal
+
+set APP_HOME=%~dp0
+
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+if defined JAVA_HOME (
+  set JAVACMD=%JAVA_HOME%\bin\java.exe
+) else (
+  set JAVACMD=java.exe
+)
+
+%JAVACMD% %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+endlocal