Description of the Issue
UTF characters in the plugin information are not rendered correctly in plugin manager when the plugin is viewed (for example, when trying to install a new plugin).
The author of the Npp Xml Treeview plugin is João Rosa but this is shown in Plugin Manager as João Rosa

The plugin still installs and works as expected, so this is a minor issue.
Version Information
Plugin manager version : 1.4.9.0 (x64)
Notepad++ version: 7.4.2 (x64)
OS: Windows 10 1703 Enterprise (x64)