Add flavor to switch setup phase
Use PB connection for manifest bag
Reduce number of nodes

Because there are only foru riak cs nodes.
It's possible to increase but defered for future task.
Add flavor description to riak_test/README
Cosmetics

- objects/blocks instead of manifest/block
- add specs
- log message
Merge pull request #872 from basho/feature/riak-test-flavor

Feature/riak_test flavor

Reviewed-by: kuenishi
Fix typo
first (untested) cut at a copy server
use active manifest in manual test
use index instead of length for End in riak_cs_get_fsm:continue/1
use base64 encoded MD5 for riak_cs_put_fsm:finalize/2
PUT copy of objects and maultipart upload, including acl and policy checking

with:

- multipart upload-copy with ACL control
- special copy condition and range in multipart_upload
- release note mentions as technical preview
code cleanup
obeying dialyzer
add more permission tests
fix on beginning '/', for s3cmd and misc fix
anonymous access can copy secret file to public space
take user info again, because owner might be already shifted.
fix various comments, add size limitation on each upload
discussion fix;

- stop the get_fsm_pid in upload part
- MD5 checksum won't be checked if any range specified
- add boto test code
- fix corner case with source multipart upload on put copy with range

dialyzer fix

fix comment