3.1.0 RC2

New Features

• implemented support for migrations generators (IDiffGenerator),
  with Doctrine ORM SchemaTool
• extracted groups & extension handlers configuration to IConfiguration interface,
  defaults to DefaultConfiguration
• added elapsed time & number of queries to console output
• exception message for changed migrations contain old and new hashes
• CreateCommand: added support for nested directory structure
• CreateCommand: prints path to created file to stdout
• removed strict order requirement for independent groups

BC Breaks

• Symfony commands: removed --production option,
  use withDummyData option in config.neon or setup IConfiguration option instead
• Symfony commands: changed constructor to accept IConfiguration instance instead of $dir and $phpParams
• IPrinter: changed printExecute() signature to accept elapsed time as well d088b24
• IPrinter: printReset replaced with printIntro 960b008