Add support for SQLITE_CHECKPOINT_TRUNCATE.

FossilOrigin-Name: edda2b9e7a15ed486de81b10dd9bacd39c571d3f

diff --cc manifest
index 7f9f9524d0278cd10138b573a0f5b1cc24975714,0caddab954d09db28a9d968c56e2716a5531d34d..e04f96ce6575a34bc9c2532db5bfe5e5b494e46c
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,5 -1,5 +1,5 @@@
- C Convert\stwo\sunreachable\sbranches\sinto\sassert()\sstatements.
- D 2014-12-02T16:16:47.791
 -C When\sattempting\sto\srestart\sa\swal\sfile,\smake\sany\srequired\scalls\sto\ssqlite3_randomness()\sbefore\swaiting\son\sor\schecking\sfor\swal\sfile\sreaders.\sThis\srestores\sthe\sbehaviour\sexhibited\sby\sthe\strunk.
 -D 2014-12-02T19:35:09.278
++C Add\ssupport\sfor\sSQLITE_CHECKPOINT_TRUNCATE.
++D 2014-12-02T20:51:52.630
  F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
  F Makefile.in a226317fdf3f4c895fb3cfedc355b4d0868ce1fb
  F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@@ -1223,7 -1223,7 +1223,8 @@@ F tool/vdbe_profile.tcl 67746953071a9f8
  F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
  F tool/warnings.sh 0abfd78ceb09b7f7c27c688c8e3fe93268a13b32
  F tool/win/sqlite.vsix deb315d026cc8400325c5863eef847784a219a2f
- P 0d04f380e1bd17104b3cf76b64d0cfc79a726606
- R 22214da224af1bd07c2ba4ce527797c4
 -P 8e20a43419e46b6b9d1f60ec7ea420bbfb3ef358
++P 61b31e771430f490fc2c4cef55046debc4a5f4f5 6ee08769f0ffbb3d620c66b89180ece7782dc820
+ R 54481572fc28e1041792401f62b71701
 -U dan
 -Z a7c4df9879a4ca8a80f8224dd87c78e4
++T +closed 6ee08769f0ffbb3d620c66b89180ece7782dc820
 +U drh
- Z 4469ca4ec037115204af98a9b9e41068
++Z 2b54bfeee1d348300e5d5565430bbc39

diff --cc manifest.uuid
index fe8f0fdad5cfd0e23f80539da43f1c70c28aed9e,4930bb9b1521d66d7e64be1d8744b70c502df1c4..e1c0f3e973e0344e464eca62453f5b1b2f5711ae
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- 61b31e771430f490fc2c4cef55046debc4a5f4f5
 -6ee08769f0ffbb3d620c66b89180ece7782dc820
++edda2b9e7a15ed486de81b10dd9bacd39c571d3f