Updated the Avro library and tools to the HEAD of the SVN tree since we're demo'ing IPC now. IPC is absent in 1.7.5 (current release) but will be present in 1.7.6 (a release in the future)
Added server RPC IDL and also renamed the namespace (to avoid ambiguity with project name itself) a
adding auto-generated schemas
refactored the Serialization Demo and added a Server RPC demo