1.7.6
* Enable printing the project definition as PDF, through a new button added to
the weighting dialog
* When downloading a project from the OQ-Platform, enable setting the
destination file name (not only the destination folder)
* Enable zooming the project definition tree, and no overlapping in the text
labels
* Enable the 'Project definitions manager' also for projects that are not
associated to any project definitions yet
* Fix corner case occurring when two nodes in a project definition had the same
name and were incorrectly pointing to the same field
* Fix refactoring-related issue that was breaking the plugin in case on-the-fly
calculations were disabled
* Fix "What's This?" functionality on Windows
* Fix searching functionality in the documentation
* Minor improvements to the user manual