Update microprofile examples to use microprofile-config.properties

[barchetta]

Changed these two examples to use microprofile-config.properties (and not application.yaml).

This required removing the integer array in config (supported by yaml, not properties).

[ljnelson]

(Full disclaimer: haven't looked in detail at this.) MicroProfile Config does support arrays of things natively. For example, if this is in a ConfigSource somewhere:

foo.bar = 2,4,6,8

…or:

foo.bar = 2, 4, 6, 8

…and you include it like this:

@Inject
@ConfigProperty("foo.bar")
private int[] ints;

…or you get it like this:

final int[] ints = Config.getValue("foo.bar", int[].class);

…I believe it is supposed to be handled automatically by all conformant implementations (such as ours), though I'm typing off the cuff here so be kind in terms of syntax 😄 . Were you not seeing this?

[barchetta]

Put back int list in the example that used them.

[ljnelson]

Haven't looked deeply but down below you set the port to 7001, so will a dynamic port truly be used?

[barchetta]

In the explicit example it uses a dynamic port. In the implicit example it uses 7001.