#5 Work class introduced for Queueing
#5 com.rultor.log introduced
#5 missed file
#5 com.rultor.spi added and S3Log
#5 test fixed
#5 S3Client added
#5 Pulse.Signal added
#5 Pulse.Signal added
#5 S3Pulse implemented
#5 Cache implemented
#5 javadoc polished
#5 S3LogITCase added
#5 Key class added
#5 Key tested
#5 extra polishing and testing of S3Log
#5 S3Log works with S3
#5 polished
#5 cleaned
#5 tests fixed
#5 Conveyer.Line is immutable