Merge the improved anti-virus defenses into the trunk.

FossilOrigin-Name: 0207fd9b0c0f6baa3c2cb8ba588ad585507848b3

diff --cc manifest
index e631fa3a74921f4684a0149cc9b2aa027c1fefa7,12792f6e0a51c41af3f9d7cc69e3653b20bbbe01..00a73b3bc962e8ff4162464039d83b9edff12a40
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,5 -1,5 +1,5 @@@
- C Update\sthe\sTCL\scommands\sfor\ssetting\swindows\smanditory\slocks.\nAdd\stest\scases\sfor\smanditory\slock\sdelays\sunder\swindows.
- D 2011-07-11T23:45:44.051
 -C Revise\slogic\sin\swinDelete\sto\scheck\sthe\sfile\sprior\sto\sattempting\sto\sdelete\sit.
 -D 2011-07-12T14:02:47.638
++C Merge\sthe\simproved\santi-virus\sdefenses\sinto\sthe\strunk.
++D 2011-07-12T14:38:25.733
  F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
  F Makefile.in c1d7a7f4fd8da6b1815032efca950e3d5125407e
  F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@@ -952,7 -952,7 +952,7 @@@ F tool/symbols.sh caaf6ccc7300fd4335331
  F tool/tostr.awk 11760e1b94a5d3dcd42378f3cc18544c06cfa576
  F tool/vdbe-compress.tcl d70ea6d8a19e3571d7ab8c9b75cba86d1173ff0f
  F tool/warnings.sh 2ebae31e1eb352696f3c2f7706a34c084b28c262
- P c20aca06610407c197ea50ea77c2591aacf2252a
- R 4c1b031b9c10734fc2cbb78ed1f104dd
 -P ff0ff75c3559f5bbe29c73204cc8ff1cb80f42cb
++P 03af4c175c6ba303ec0a5be25fd42771e38f7347 36f11acc531a524407e03c797a6a1bcf88bad809
+ R 15ec97d6baeea0684b5deea8be1be88e
 -U mistachkin
 -Z 94bbfee187493f0fa246b9c95f6c61dc
 +U drh
- Z 4f5517f8772eb0c19d9bc59edbaff4cc
++Z 2176be5b1a19aaddd13f35903c55d94b

diff --cc manifest.uuid
index 688cc99f9e8a9b3ef63d6249d16ca047243f01c4,1b53d3ad8000231e07ea0f87865ac7df998e5405..21872bd98141a78a4461176f519f9f298715108a
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- 03af4c175c6ba303ec0a5be25fd42771e38f7347
 -36f11acc531a524407e03c797a6a1bcf88bad809
++0207fd9b0c0f6baa3c2cb8ba588ad585507848b3