Mainly, this fixes an overlooked case of type parameter exposure, namely a 
field whose type is an *array* of parameterized types, for example "Foo<T>[]".
Additionally, there are some documentation improvements and minor cleanups.

Review by: mmendez

git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@2912 8db76d5a-ed1c-0410-87a9-c151d255dfc7