Remove references ot 'skip' strategy

Now called `recovr`

src/leveled_bookie.erl

@@ -1109,7 +1109,7 @@ book_destroy(Pid) ->
 %% to store the backup.
 %% 
 %% Backup files are hard-linked.  Does not work in head_only mode, or if
-%% index changes are used with a `skip` compaction/reload strategy
+%% index changes are used with a `recovr` compaction/reload strategy
 book_hotbackup(Pid) ->
     gen_server:call(Pid, hot_backup, infinity). 
 

src/leveled_codec.erl

@@ -89,7 +89,7 @@
 -type ledger_kv() ::
         {ledger_key(), ledger_value()}.
 -type compaction_method() ::
-        retain|skip|recalc.
+        retain|recovr|recalc.
 -type compaction_strategy() ::
         list({tag(), compaction_method()}).
 -type journal_key_tag() ::
@@ -375,7 +375,7 @@ inker_reload_strategy(AltList) ->
 
 
 -spec get_tagstrategy(ledger_key()|tag()|dummy, compaction_strategy()) 
-                                                    -> skip|retain|recalc.
+                                                    -> compaction_method().
 %% @doc
 %% Work out the compaction strategy for the key
 get_tagstrategy({Tag, _, _, _}, Strategy) ->

src/leveled_iclerk.erl

@@ -805,10 +805,11 @@ split_positions_into_batches(Positions, Journal, Batches) ->
 %% recalculating the KeyChanges by looking at the object when we reload.  So
 %% old objects can be discarded.
 %%
-%% If the strategy is skip, we don't care about KeyDeltas.  Note though, that
+%% If the strategy is recovr, we don't care about KeyDeltas.  Note though, that
 %% if the ledger is deleted it may not be possible to safely rebuild a KeyStore
 %% if it contains index entries.  The hot_backup approach is also not safe with
-%% a `skip` strategy.
+%% a `recovr` strategy.  The recovr strategy assumes faults in the ledger will
+%% be resolved via application-level anti-entropy
 filter_output(KVCs, FilterFun, FilterServer, MaxSQN, ReloadStrategy) ->
     FoldFun =
         filter_output_fun(FilterFun, FilterServer, MaxSQN, ReloadStrategy),