Use a date-based version number
Use a date-based version number

This is related to the discussion in issue #297 and brings the version info
in META.info up to date with that effectively (but not previously
officially) used.

nbrown/panda,stmuk/panda,stmuk/panda,nbrown/panda,tadzik/panda,jonathanstowe/panda,tadzik/panda,tadzik/panda,jonathanstowe/panda,timo/panda,timo/panda