By Daniel Berthereau: Simplified format for geotaxonomy import/export.

By Daniel Berthereau: Added term enclosure option.
By Daniel Berthereau: Reviewed user interface code for lisibility (js & css).
By Daniel Berthereau: Reviewed batch code in order to decrease memory usage.

By Daniel Berthereau: Added import by a text area.
By Daniel Berthereau: Added hook_perm "administer taxonomy by csv".
By Daniel Berthereau: Added memorize user settings.
By Daniel Berthereau: Added test on a duplicate of an existing vocabulary.
By Daniel Berthereau: Added tabulation delimiter option.
By Daniel Berthereau: Added import terms as flat vocabulary.
By Daniel Berthereau: Renamed "children import" to "structure import".
By Daniel Berthereau: Disabled option relations to all vocabularies (not in D6).
By Daniel Berthereau: Extracted advanced help to alone file.
By Daniel Berthereau: Simplified stats import code.

By Daniel Berthereau: Added option to make relations into all vocabularies.
By Daniel Berthereau: Fixed related terms import: remove related when replace.
By Daniel Berthereau: Fixed vocabulary level check for flat vocabulary.

By Daniel Berthereau: Added options to display import result.
By Daniel Berthereau: Added options to choose log level.
By Daniel Berthereau: Added one term structure array import.
By Daniel Berthereau: Added auto create vocabulary.
By Daniel Bertheraeu: Added vocabulary level check.
By Daniel Berthereau: Extended help about one term structure array import.
By Daniel Berthereau: Fixed translate in install hook.
By Daniel Berthereau: Fixed related terms import: keep old even if Ignore.
By Daniel Berthereau: Fixed related terms import: remove related when replace.

Improved CSV format compatibility by letting users choose the delimiter and automatically detecting line endings and encoding. (Issues: #233571 by coupet, #243027 by waltercat.)