Release version 2.0.0

[jonherrmann]

The following issues that occurred in release candidate version 2.0.0-rc4 (build 180605T1851) were fixed:

• Force using HTTPS in requirejs (Cross-Origin Resource Sharing policy error in console) #154 - fix (Web Interface): the Web Interface did not load in some browsers when HTTP (without S) was used.
• Downloaded report filename is incorrectly "out.html" #159 - fix (Reports): the downloaded report filename was out.html. Now the label of the report is used.
• Auto configuration of etf.testobject.max.size not working correctly #152 - fix (Configuration): the automatic configuration of the property etf.testobject.max.size was not working correctly.
• Remove Opbeat from Webinterface #155 - refactor (Web Interface): the error diagnosis tool Opbeat was removed because the service has been discontinued.
• Report XSLT lacks a language fallback mechanism for TranslationTemplateBundles #172 - fix (Translation Template Bundles) the use of languages other than English in Translation Template Bundles did not work properly if translations were not available for all messages.
• Fix links in Swagger UI #171 - fix (Web Interface) links in the SwaggerUI were updated to point to the correct locations