Defer opening and writing statement journals until the size reaches a

threshold (currently 64KiB).

FossilOrigin-Name: cb9302cca423de41305719a49208daa392ec09da

diff --cc manifest
index d39a07ce5cc98a006fa9a43cfaedb2feb82cdec6,b827dc21f1ee41192d27d83c21d39fee86dc05d0..5e68a8f7a248c7831fc4eafb99107ba5d0c60468
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,5 -1,5 +1,5 @@@
- C Change\sthe\sdefault\scache_size\sto\s-2000\s(which\smeans\s2000*1024\sbytes\nindependent\sof\spage_size).
- D 2016-03-04T04:01:43.190
 -C Update\stest\scases\sto\staken\sdeferred\sstatement-journal\sopening\sinto\saccount.
 -D 2016-03-04T14:23:10.937
++C Defer\sopening\sand\swriting\sstatement\sjournals\suntil\sthe\ssize\sreaches\sa\nthreshold\s(currently\s64KiB).
++D 2016-03-04T14:43:44.681
  F Makefile.in ead489fe5d3313b8a2a8d5f3710173a4b50dd2e0
  F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
  F Makefile.msc d68db8ddac21ea2576ea5b446f12cf9ebe897a03
@@@ -1453,7 -1453,7 +1453,8 @@@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a9
  F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
  F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
  F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
- P 2e8a9ca9d3d6efddc31f01074d14acae56568c37
- R bce4d7ea1e35eefbc9f3bc83f2294e5c
 -P a87305dfd49ee17632d0bce66ce7c2e9407b7b3e
++P 2682e8e413fadbca0673f242769af17bfd291559 5b2fe5219ab9ad15969e3374894a75979b65cb3c
+ R bcfeac6deb0b24b3190e8b427e406c58
++T +closed 5b2fe5219ab9ad15969e3374894a75979b65cb3c
  U drh
- Z 8be75f8161fe6fe960ec420b19540c0b
 -Z 82bd4288d2e4175a3c31e21a46f9d82d
++Z 04f483c25715ded0ed1694d083bfc434

diff --cc manifest.uuid
index 0d4fa9e4a96c4a16713d2042c18c86d893fa1238,5596275a8001e5cdf40b72ad32b46202c3781e94..68d02d516aa0006f10c37e94ce3811489b352ee7
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- 2682e8e413fadbca0673f242769af17bfd291559
 -5b2fe5219ab9ad15969e3374894a75979b65cb3c
++cb9302cca423de41305719a49208daa392ec09da