Change repair to append_list in logging vnode
Merge branch 'master' of github.com:SyncFree/floppystore
removed ping() function from src/floppy.erl
removed ping() function from src/floppy.erl
Remove unused functions; change to lager.

Remove a series of unused functions, and change io:format calls to use
lager.  Default to the lager_console_backend.