* Here we wire Aether into the Ivy dependency chain
* Add hooks into Aether to use Ivy's http library (so credentials are configured the same)
* Create the actual Resolver which extracts metadata information from Aether
* Deprecate old Ivy-Maven integrations
* Create hooks in existing Resolver facilities to expose a flag to enable the new behavior.
* Create notes documenting the feature.
* Create a new resolver type `MavenCache` which denotes how to read/write local maven cache metadata
correctly. We use this type for publishM2 and mavenLocal.
* Update failing -SNAPSHOT related tests to use new Aether resolver
* Create specification for expected behavior from the new resolvers.
Known to fix#1322, #321, #647, #1616
Dale Wijnand
Eugene Yokota
Josh Suereth