COMP: update-RSSExtension

fixed some build issues caused by typename in non-template files

compare view:

https://github.com/gaoyi/RSSExtension/compare/611d981ec4f96d04c4f7c2da99d17086454a8db9…d447085b3955abb460a8c39e48af925132dd8920

i'm using gcc4.6.3 locally and didn't detect those compilation errors. is there a way to set the compiler flags so that i can detect those problem earlier?

Thanks!
yi