Fix issue where content deletion fails (after a submission error), because content is not even added to a container yet
Update changelog
Preparing release 0.9.1
Back to development: 0.9.2
Upgrade bootsrap.py
PEP8; Add ids to titles; Add error classes to error messages
Fix to display key only for TTW fields; Add trivial transforms for strings to sets and lists
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Preparing release 0.9.2
Preparing release 0.10.0
Back to development: 0.10.1
Add automatic value adaptation from single value list to Choice field
Fix to translate also list with strings to unicode
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Preparing release 0.10.1
Back to development: 0.10.2