Bug fixes:
Fixed failing xs.t if /tmp is mounted noexec (RT#47331) [David Golden]
Fixed failing debug.t on VMS (RT#48362) [Craig Berry]
Prevent par.t from dying on error in .zip extraction [David Golden]
Fixed potential runthrough.t failure on 5.6.2 [David Golden]
Other:
- Archive::Tar changed from 'requires' to 'recommends' so non-authors
without IO::Zlib can still use Module::Build to install modules
[reported by Matt Trout, fix by David Golden]