Move snapshot repositories in a profile

[slawekjaranowski]

similar to apache/maven-apache-parent#183

[kwin]

Why? Have you faced any issue in Maven projects?

I am a littlebit reluctant to introduce potentially breaking changes to Maven Parent without a real need....

[slawekjaranowski]

Why? Have you faced any issue in Maven projects?

I am a littlebit reluctant to introduce potentially breaking changes to Maven Parent without a real need....

Discussion was in apache/maven-apache-parent#183
I think we can introduce it here as well.

[kwin]

Difference is: There was a concrete issue in ASF parent, but there is none I am aware of in Maven Parent.

[slawekjaranowski]

Difference is: There was a concrete issue in ASF parent, but there is none I am aware of in Maven Parent.

The same problems can be in Mavens projects as was in ASF projects ... so I would like to be consistent with our resolutions.

Also I don't see that snapshot repositories are needed by default, so it can be a little break.