Sauna.reload

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- Support Plone 4.1
- Heavily edited readme [miohtama]
- Show nice error log message if product installation failed to defer ie. is
not reloadable.

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- Add INewChildIsReady event and move INewChildForked event
- Remove overly used prints and use logging
- Can now reload __init__.py from package root

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- Support for Five-initialized products (e.g. Archetypes).
- Browser View for manual reloading
- Emit INewChildForked events
- Many bug fixes

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- Added missing egg description.
- Added forgotten reload for localizations.
- Prefixed commands in README with $.

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- First experimental release.