v4.04

Please use v4.05 or newer instead, that works better.

This release adds the following features:

• Found Time Tracking GPLv3 software "Titra" with integration to Wekan.
  Thanks to willhseitz.
• Theme: Natural.
  You can select it from Board Settings / Change color / natural.
  Thanks to compumatter and helioguardabaxo.
• Theme: Modern.
  Thanks to jeroenstoker com and helioguardabaxo.
• Export board to HTML static page .zip archive.
  Thanks to Lewiscowles1986.

and fixes the following bugs:

• Change the swimlaneid of a card only if a new target swimlaneid is selected.
  Thanks to marc1006.
• Set '*' as default value for swimlane and list name in card move action.
  Thanks to hickorysb and marc1006.

Thanks to above GitHub users for their contributions and translators for their translations.