Minor cleanup activities for the next version.

[wyld-sw]

Modified content related to included databases:

• Included recently-added tunes.
• Alphabetized tune list in minimaldb.
• Added con-laston to starterdb.
• Relocated *Keeper to Null Environment Room and gave him license-mit (and ownership of it).
• Referenced starterdb in README.
• Changed example email address to noreply@yourmuck.com.

Changed {contents} to stop accepting a type parameter of “exit”.

Added 2.2Muck7.10 features to changesfb7 file. A separate commit will change the version define.