Half of 'em just look like dots

Release

v1.1.0-alpha.2 is a small iteration on last week's alpha.1.

This release fixes some issues in the test generators and makes some minor, non-substantive cleanups.

PR showing full diff can be found here: #2262

Phase 0

Beacon chain

Stable!

Note: process_justification_and_finalization was refactored to utilize a weigh_justification_and_finalization helper to facilitate cleaner spec writing in subsequent phases (#2258)

Altair

Beacon chain

• Utilize weigh_justification_and_finalization to reduce code duplication (#2258)
• Rename in-state sync sub-committee to avoid name collision with aggregation sub-committees (#2255)

Validator

Ensure Altair validator guide is executable (#2256)

Testing, Repo, etc

• Fix Altair test fork version generator issue (#2259)
• Fix test generator file output mix-ups (#2261)