Migrate Aether to maven-resolver as Aether was brought to ASF as a subproject of Apache Maven

Looks like Aether is donated to ASF (in couple of years) and renamed as "maven-resolver" as a subproject of Apache Maven.

https://github.com/apache/maven-resolver
https://issues.apache.org/jira/browse/MNG-6007
http://incubator.apache.org/ip-clearance/maven-aether.html

As it is a kind of complete fork of Aether and further versions have been published here (the latest version of Aether is 1.1.0, whereas the latest version maven-resolver is 1.3.3), it should be easy to migrate to maven-resolver and reduce using EPLv1 license in Apache Storm.