Merge https://github.com/firegiant/wix3 into develop
Merge branch 'develop' of https://github.com/wixtoolset/wix3 into develop
Merge branch '4598' of git://github.com/rseanhall/wix3 into develop
Merge branch 'develop' of https://github.com/wixtoolset/wix3 into develop
Merge branch 'httpVotive' of git://github.com/rseanhall/wix3 into develop
Fix bug in mbapreq where it wouldn't reload the bootstrapper if there was a mix of installed and uninstalled prerequisites.
Fixed the DOC bug 4594.
Merge branch 'develop' of https://github.com/wixtoolset/wix3 into develop
Merge branch 'WIXBUG4594' of git://github.com/jchoover/wix3 into develop
Merge pull request #182 from jchoover/WIXBUG4594

Fixed the DOC bug 4594.
Merge branch 'develop' of https://github.com/wixtoolset/wix3 into develop
Merge branch 'bug4608' of git://github.com/rseanhall/wix3 into develop

Conflicts:
	History.md
Upgrade Sandcastle, and use its Nuget package.
Merge pull request #183 from rseanhall/sandcastle

Upgrade Sandcastle, and use its Nuget package