The current prompt of the android-build.py script it abscure.

Valid targets are: [hellocpp|testcpp|simplegame|assetsmanager|hellolua|testlua|cocosdragon|crystalcraze|moonwarriors|testjavascript|watermelonwithme]

  You can use [all|cpp|lua|jsb], to build all, or all the C++, or all the Lua, or all the JavaScript samples respectevely.

Options:
  -h, --help            show this help message and exit
  -n NDK_BUILD_PARAM, --ndk=NDK_BUILD_PARAM
                        parameter for ndk-build  -p ANDROID_PLATFORM, --platform=ANDROID_PLATFORM
                        parameter for android-update.Without the parameter,the                        script just build dynamic library for project. Valid
                        android-platform are:[10|11|12|13|14|15|16|17|18|19]  -b BUILD_MODE, --build=BUILD_MODE                        the build mode for java project,debug[default] or
                        release.Get more information,please refer to                        http://developer.android.com/tools/building/building-
                        cmdline.html

What is the complete option and we should provide some complete sample usage to help our developer.