One of the new features of the beta EnergiaNG is that fact that it is now using the standard Arduino 1.6.x IDE. Unfortunately, it doesn't look like it is ready to work as a boards manager package with the standard Arduino IDE. Energia/TI likes their branding and it seems they want to keep TI boards and Arduino board from ever meeting in the same program.
At the same time, I noticed a few things that are missing and instead of trying to push those into Energia. I decided to fork the tivac-core and make the changes there. I also moved away from the proprietary dslite uploader in favor of