Implement Librados adaptor
Implement librados Connector for cosbench
2nd commit to implement librados connector
Add license to librados Connector
Make RangeIntGenerator Thread Safe
(otherwise it would sometimes give some numbers multipletimes)
Implement Operator to pick up files from disk and put them into the
storage
Merge branch 'filewriter'

Conflicts:
	dev/cosbench-driver/src/com/intel/cosbench/driver/operator/FileWriter.java
	dev/cosbench-driver/src/com/intel/cosbench/driver/util/FilePicker.java
Merge branch 'librados_connector'

Conflicts:
	dev/cosbench-librados/src/com/intel/cosbench/client/librados/LibradosConstants.java
	dev/cosbench-librados/test/com/intel/cosbench/api/librados/DummyConfig.java
	dev/cosbench-librados/test/com/intel/cosbench/api/librados/DummyLogger.java
	dev/cosbench-librados/test/com/intel/cosbench/api/librados/TestLibradosStorage.java
Merge remote-tracking branch 'upstream/master'
Change HashUtil to throw exception instead of system.out'ing it, so it
can be properly logged by higher classes
Implement hashCheck for filewriter. The file put on the storage will be
extended by the hash. It is compatible with the hash the writer ander
reader are using.
Fix author
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'upstream/master'
Fix Testclass for RangeIntGenerator
Update DISTRIBUTIONS.md

add 0.3.1.1
Update CHANGELOG
add cosbench introduction slide deck
remove filewrite work in mock test, as this workload is to show user what cosbench looks like with minimal to none external dependencies.
align execution core to adapt nio engine, WIP