EZP-21191: RichText field type initial implementation
EZP-21817: update non-translatable fields instead of copying
Merge pull request #665 from ezsystems/implement-EZP-21191-richtext

EZP-21191: RichText field type
Merge pull request #573 from ezsystems/fix-EZP-21817-update-copied-field

Fix EZP-21817: field copies in existing language are copied from main language instead of updated