io::file::AppendBuffer implementation.
v1::MessageTypePool::Init() stability guarantee.
log_::writeTestData() refactoring.
detail::openFileAppendOnly() implementation.
NamedLogWriter::append() implementation.
v1::LogReader::fastCheck() implementation and integration.
Refactoring: integration with bunsan::error.
LogReader::nextMessageType() documentation improvement.
v1::BaseLogWriter::~BaseLogWriter() implementation.
Merge branch 'master' into yandex_rhel5

Integration with bunsan::error.