max_year base case bug fixed. ezic:localtime/1 works.

the final flatzone for every Zone should end at "current" for every *_to time. This is inaccurate, but accuracy is only guaranteed up to ?MAX_YEAR (=2500 by default).
that working, I fleshed out the few methods required to get ezic:utc_to_localtime/2 working, thus localtime/1 working. I've only tested localtime/1 at this point.
additionally, mnesia appears to have its data corrupted every time I stop and start a node. I've got to read up on working with mnesia; it's not behaving as I would expect.

src/ezic.erl

@@ -8,7 +8,13 @@
 	 , next_timechange_after/2
 	]).
 
--export([load/1, dev/0, test/0]).
+-export([
+	 load/1
+	 , dev/0
+	 , test/0
+	 , reflatten/0
+	 , zf/0
+	]).
 
 
 
@@ -28,8 +34,14 @@ localtime(TzName) ->
 
 
 utc_to_local(UTCDatetime, TzName) ->
-    #flatzone{offset=Offset, dstoffset=DSTOffset}= ezic_db:flatzone(UTCDatetime, TzName),
-    ezic_date:add_offset(ezic_date:add_offset(UTCDatetime, Offset), DSTOffset).
+    NormalDatetime= ezic_date:normalize(UTCDatetime, u),
+    #flatzone{offset=Offset, dstoffset=DSTOffset}= ezic_db:flatzone(NormalDatetime, TzName),
+    
+    ezic_date:add_offset(
+      ezic_date:add_offset(
+	UTCDatetime
+	, Offset)
+      , DSTOffset).
     
 
 
@@ -57,11 +69,22 @@ load(Folder) ->
 dev() ->
     ezic:load(filename:join("priv","tzdata")),
     ezic_flatten:flatten(),
+
 %    Zones= ezic_db:zones("WET"),
 %    ezic_flatten:flatten_all_zones(Zones),
 
     ok.
 
+zf() ->
+    Zones= ezic_db:zones("Asia/Tokyo"),
+    ezic_flatten:flatten_all_zones(Zones).
+    
+
+reflatten() ->
+    ezic_db:wipe(flatzone),
+    ezic_flatten:flatten().
+
+
 
 test() ->
     lists:foreach(