hooks: no need to package for pre-commit.
README: add build status badge.
remove Table#streamingPrinter().

Streaming should be indicated by passing a Stream<T> to print()
rather than an ImmutableList<T>.
test: disable truncation test for API changes.
remove FormattingInfoComputers.fixedWidth.
inline FormattingInfoComputers into RowInfo.
remove RowInfo.formattingInfo.
print: take ImmutableCollection, not ...List.
add javadocs for intended API behavior.
implement real stream printing.
test: remove unnecessary "throws Exception"s.