Add the "scrub" utility program that simultaneously backs-up a live database

and erases all deleted content.

FossilOrigin-Name: c981ab2a4771f8c5e95e2e85e37a02a4bd0e36ee

diff --cc manifest
index 3c996008c1ea0e2fd7bd0ac8463cbbcba5afc387,8af4221406f7bd7d1d669997c1e475aad74507c8..ed2ee43fc4a49c4b4f4fb6b7cb50f2db1ebe89c1
--- 1/manifest
--- 2/manifest
+++ b/manifest
@@@ -1,8 -1,8 +1,8 @@@
- C Omit\sthe\sunnecessary\sWHERE_REOPEN_IDX\sflag\sin\sthe\sWHERE\sinterface.
- D 2016-05-18T21:01:27.099
- F Makefile.in 9eda6e1c90d05c199c3ec8a7069b0682ad307657
 -C Enhance\sthe\sscrub\sutility\sprogram\sso\sthat\sit\sdoes\sa\sFULL\scheckpoint\sprior\sto\nstarting\sthe\sbackup,\sto\sensure\sthat\sthe\sdatabase\sfile\scontent\smatches\swhat\sneeds\nto\sbe\sbacked\sup\swithout\shaving\sto\slook\sat\sthe\sWAL\sfile.
 -D 2016-05-17T21:17:51.530
++C Add\sthe\s"scrub"\sutility\sprogram\sthat\ssimultaneously\sbacks-up\sa\slive\sdatabase\nand\serases\sall\sdeleted\scontent.
++D 2016-05-18T21:03:27.980
+ F Makefile.in f59e0763ff448719fc1bd25513882b0567286317
  F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
- F Makefile.msc db82b35aef27f412fef14d8534afc022138bcdfd
+ F Makefile.msc 306d73e854b1a92ea06e5d1e637faa5c44de53c7
  F README.md 8ecc12493ff9f820cdea6520a9016001cb2e59b7
  F VERSION 5d234da9b5dae329fab75ff75884cfe0a9cb3fda
  F aclocal.m4 a5c22d164aff7ed549d53a90fa56d56955281f50
@@@ -1488,8 -1489,7 +1489,8 @@@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a9
  F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
  F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
  F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
- P fc49f556e48970561d7ab6a2f24fdd7d9eb81ff2 da94a6e0ebacad8f235dcd653a25474327f26137
- R 9e1f8e54236f8755244237de4975d385
- T +closed da94a6e0ebacad8f235dcd653a25474327f26137
 -P 5021dfe1f3f723a5938d547a0308f1d63103702d
 -R a2f9971160f157164223781dabeb5e95
++P 915416d15f43c4e1d3afa8121bb6fa09f9f67e30 ab1c5ce50f139070d7a322f43132a93c8af2ed68
++R d7177fcfb6d0afbc5b91ed78ec9dbdb9
++T +closed ab1c5ce50f139070d7a322f43132a93c8af2ed68
  U drh
- Z 85bf8286938cce8189356318f458d85b
 -Z 2fde01a79f5811045a1dffd48050935f
++Z c9dd9bd914e72b28b0a6b209c46c7aec

diff --cc manifest.uuid
index e26ba40d34f39c661c0e0e1b8c31bd9991a3f808,30152d3b675ea4e4556ffcf8d269a68e697e40a0..a5036d52e948cddaf126141c3fe4a66abdfd04c8
--- 1/manifest.uuid
--- 2/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- 915416d15f43c4e1d3afa8121bb6fa09f9f67e30
 -ab1c5ce50f139070d7a322f43132a93c8af2ed68
++c981ab2a4771f8c5e95e2e85e37a02a4bd0e36ee