Remove unnecessary include of snappy.h in compressed/stream.h.
Link all unit tests against Snappy.
Fix constant truncation in compressor_buffer.
Add necessary cast to size_t.
Add necessary cast to stream_size_type.
Add necessary cast to stream_size_type.
Add necessary casts to memory_size_type in compressed/stream.h.
Fanout is a memory_size_type.
ut-snappy: Support building with snappy disabled.
Merge fixes for warnings generated by MSVC 32-bit.
compressed/scheme_snappy.cpp: Support compiling without snappy.