Import and export XML with color attributes in hexadecimal representa…
…tion (#650)
Due to the autodetection of the representation, `std::stoi` will convert
both the decimal and the hexadecimal representation, thus preserving backwards compatibility.
Remove Travis CI file (#652)
GitHub Action Runner is being used for CI instead.
Tick off one implemented TODO (#653)
Adapt XML exporter logic to the simpler XML importer logic (#657)
The XML importer uses `void System::FillXML(Cell*, wxXMLNode*, bool)` that does not make use of
inheritance by comparing with the parent cell, while the XML exporter in
`wxString Cell::ToText(int, const Selection&, int, Document*, bool)` makes use of inheritance
to avoid emitting repeating attribute values.
This commit adapts the XML exporter to the simpler logic of the XML importer.
Translation update (#658)
* Update German text translation file
* Update German binary translation file
* Remove and fix wrong headers in French translation file
* Fix line breaks and whitespaces in French translation file
* Remove obsolete strings in French translation file
* Add new translation strings in French translation file
* Update POT-Creation-Date in French translation file
* Update French binary translation file
* Remove and fix headers in Italian translation file
* Delete obsolete string in Italian translation file
* Update POT-Creation-Date in Italian translation file
* Add new translation strings to Italian translation file
* Fix existing translations in Italian translation file
* Update Italian binary translation file
Save and load grid bordercolor to/from XML attribute (#660)
Save and load folded to/from XML attribute (#664)
Update Brazilian Portuguese translation
Thanks to @georgeraraujo
Do not thinexpand in case a TreeSheets file is opened via Drag and Drop