Use -O2 when building with standard compiler flags

Since we are setting CFLAGS explicitly, we override any Makefile
defaults, which will often be -O2.

Picked from https://github.com/chef/omnibus/pull/591

See merge request !4

Since we are setting CFLAGS explicitly, we override any Makefile
defaults, which will often be -O2.

Fix to deb md5sums format for 'dpkg --verify'

omnibus version to v5.0.0



See merge request !2

Version 5.0.0

Version 4.1.0

Fix spelling error

Add fastmsi infra to omnibus

Update required ruby version to 2.0, added 2.2 to testing

[JEX-52] support custom properties in Artifactory publishing

Add Debian arm64 support

This will allow an end user to attach custom artifact properties when 
publishing to Artifactory.

We’ll also move generation of the `build.*` properties in this new 
method.

@schisamo reports we're currently using 2.1.5 for our building.
It'd be nice to be able to use some of the new features of Ruby 2.0+.

Debian has decided that ARMv8 is "arm64" platform instead of the
GCC stated "aarch64" platform. This adds support for that in the
omnibus deb packager.

Add MSI DSL to query under the gems directory

Skip registry harvesting, suppress warning

Fix ordering issue in builder tests

Change the appbundler DSL to not make an apps dir

Ensure metadata.json returns the correct Solaris arch value

This is an additional fix for chef/omnibus#554

Use the proper architecture value in Solaris packages

We should be using the more general instruction set architecture (e.g.
`sparc` vs `sun4v`/`sun4u`)

Fixes chef/chef#4018

Fixed regression with AIX package ownership in staging directory