cli docs - spaces in main activity name

[Don Coleman]

The CLI docs for creating an app, use a main activity name containing a
space

    $ cordova create HelloWorld com.example.hello "Hello World"


This works for iOS but fails on Android. Should we adjust the docs, or
attempt to make the Android scripts remove spaces?

http://docs.phonegap.com/en/edge/guide_cli_index.md.html#The%20Command-line%20Interface_create_the_app