replace ColumnarMetatdata with a dynamicproto
remove support for CountedMap (pig map support for protobufs)
remove misc.proto
merging in access to field and file descriptor, as well as tests. Cleaned up some compilation warnings, as well
fix whitespace
Merge pull request #418 from rangadi/remove_protobufs

Replace ColumnarMetadata protobuf used in RCFile with dynamic protobuf, remove CountedMap for pig
Pulls in the source of a BSD licenced base64 implementation that is 5x faster than the Apache one for our usage
Merge pull request #422 from ianoc/ianocBase64DecodePerf

Use signficantly faster base64 implementation
Don't copy the array before handing it for base64 decode
Merge pull request #423 from ianoc/ianocBase64DecodePerf

Don't copy the array before handing it for base64 decode
Merge pull request #421 from brirams/expose_file_descriptor

Expose FileDescriptor and FieldDescriptor in ThriftToDynamicProto