Bug Fixes

• Fix the handling of application/javascript #292, #294 (@kylekyle, @mrkn)

Enhancements

• Add the initialized event in IRuby::Kernel class #168, #296 (@Yuki-Inoue, @mrkn)
• Add the following four events #295 (@mrkn):
  • pre-execute -- occurs before every code execution
  • pre-run-cell -- occurs before every non-silent code execution
  • post-execute -- occurs after every code execution
  • post-run-cell -- occurs after every non-silent code execution
• Replace Bond with IRB in PlainBackend #276, #297 (@cfis, @mrkn)