WIXBUG:4394

Enforce a maximum include nesting depth of 1024 to avoid stack overflows
when files include themselves.
Merge branch 'develop' of https://github.com/wixtoolset/wix3 into develop
WIXBUG:4410

Fix MediaTemplate/@CompressionLevel and ensure that when it's not
specified, the default compression level takes effect.
Merge pull request #26 from barnson/bug4410b

WIXBUG:4410