Initial changes in logging_vnode
modified the materialiser
new materialiser for updated sequential log
added comment
Major changes done. Still missing new materializer
Fix merge problems with master
fixed small bug that was making the materialiser to crash when trying to apply to an op. from a different key
Fix record payload problem
Merge branch 'materializer_test' into sequential_log
Fix get_primaries_preflist for partitions as hashkey
Merge master into sequential log. All test passed
Fix comments of handle_commands in logging_vnode
Fix commented test in loggin_vnode. Uncomment tests
Add comment and specifications to log_utilities.erl
Modify spec get_hashedkey_from_partition
Fix incorrect fold call.
Match against ok.
Fix specification which is too wide.
Merge with master
Fix some dialyzer errors