Remove Assets from Primary Artifact

[vjkoskela]

The project exports two artifacts, one is the primary jar artifact and the other is an assets artifact. However, the primary artifact also includes the assets it its META-INF/resources/webjars/metrics-portal// folder. The assets are not setup to be used as webjar assets (wrt cross-references) so they should be removed from the primary artifact and used only from the assets artifact. There is currently no blocking impact on projects extending metrics-portal and the metrics-portal uses the distribution artifact created by Play for deployment.

[vjkoskela]

The project under Maven no longer publishes two artifacts; see Maven Central:

https://repo1.maven.org/maven2/com/arpnetworking/metrics/metrics-portal/0.9.5/

However, we have not tested whether this is sufficient packaging when consumed by an extension project. The original issue arose because it was not sufficient under SBT.

Leaving open.