First attemp removing replication layer
Merge master
Fix duplicate definition
Fix typing error
Remove useless logging messages
Adapt handoff test for no replication
Remove read_from test, it was testing low layers
Merge branch 'master' into bye_replication
Remove deprecated inter-DC replication code.
Remove append_list and wrong specifications.

Remove the append_list function call in addition to some incorrect
function specifications.
Merge pull request #77 from SyncFree/bye_replication

Bye replication
Merge branch 'master' of github.com:SyncFree/floppystore
Merge with master
Remove remaining inter-DC references.

Remove the remaining inter-DC references in the supervisor and
application files.
Merge branch 'master' into downstreamop
Fix bug: remove calling to floppy_rep_vnode and floppy_coord_sup