STunney/BobArnson: WIXFEAT:4239 - Add option to not extract the .msi when melting .wixpdbs. Don't leave temporary cabinet files behind (unless -notidy is in effect).
BobArnson: WIXBUG:4331 - guard against null registry keys
BobArnson: WIXBUG:4301 - don't cross the HRESULTs and Win32 error codes; it would be bad.
RobMen: WIXBUG:4228 - send TRUE to WM_ENDSESSION to correctly inform applications to close.
RobMen: WIXBUG:4285 - Fix typo in documentation.
RobMen: WIXFEAT:4234 - Remove ClickThrough.
SeanHall: WIXFEAT:4292 - Add ProductCode, UpgradeCode, and Version to BootstrapperApplicationData.xml.
WIXBUG:3883 - Retry on IIS ERROR_TRANSACTIONAL_CONFLICT too
SeanHall: WIXFEAT:4292 - Don't assume downgrade if already detected major upgrade.

WixBuild: Version 3.9.120.0

BobArnson: WIXBUG:4271 - Warn when using a RemotePayload package that isn't explicitly set @Compressed="no".
BobArnson: WIXBUG:4263 - Add WixMsmqExtension.dll back to binaries .zip.
BobArnson: WIXBUG:4272 - Omit custom (and therefore un-Google-able) HRESULT for failed launch conditions on the failed page of WixStdBA.
BobArnson: WIXBUG:4077 - Add log entry for the bal:Condition message itself.

WixBuild: Version 3.9.16.0

rjvdboon: WIXBUG:4089 - Remove SimpleTypes from help table of contents.
jchoover: WIXFEAT:4194 - Move DownloadUrl functionality from engine to dutil.
jhennessey: WIXFEAT:3169 - Add support for upgrade code-based product search.
jchoover: WIXFEAT:4193 - Added searching for bundles via upgrade code and querying bundle properties via provider code.

BMurri: WIXBUG:4225 - DTF: InstallPathMap didn't accept identifiers differing only by case.

BMurri: WIXBUG:4174 - Prevent unneeded build errors when generating delta patches with long file ids.
BMurri: WIXBUG:3326 - project harvester now unescapes linked files with spaces.
BobArnson: Support building on VS2013 only. Make SQL CE optional.
RobMen: WiX v3.9