v3.1.1

Minor release

The main thing that changed was the devkit logging system, which sometimes dropped parts of subprocess logs. It also prefixed all stdout/stderr logs, which made most of the devkit cli output difficult to parse from other programs. The cli prefix only happens for devkit build and devkit serve now.

Also of note:

• the devkit debugger api is stabilizing, making it easier to write plugins for the devkit in-browser simulator. See the modules in devkit/modules for examples of how the view inspector and simulator client are built.
• improve serving speed by compiling all static files in a pre-publish step, and moved the dependencies for static files into npm's dev-dependencies, so installation size from npm is smaller
• fixes a uri.relativeTo issue found in v3.1.0