Changed copyright end year to 2020 in every reference "Copyright (c) 2006-XXXX, assimp team".
Changed copyright end year to 2020 in every reference "Copyright (c) 2006-XXXX, ASSIMP Development Team".
Changed copyright end year to 2020 in LICENCE.rtf.
Changed copyright end year in CMakeFiles.txt files and any other places referencing Assimp with a copyright start and end year.
Pass std::string around instead as need to create one anyway.
Use CamelCase version to avoid caseSensiTivity issues
as will usually want the camelcase edition anyway.
Not UTF-8 but the standard XML tags are ASCII anyway
IrrXML doesn't recognise the construction: `<author></author>` as being an empty element, and so ColladaParser::TestTextContent advances the element stream into the `</author>` element.
Use TestClosing(const char*) instead of SkipElement() to skip an empty text element.
