Initial commit.
Basis for GUI.
First simple, so far empty main window.
Preview of BibTex file looks nicer now.
Turned off line wrapping in preview text browser.
Switched to PyQt5.
Added list view implementation to react on item selection.
Key construction basically working.
Implemented BibTex key generation and preview.
This version does what it's supposed to do.
Merge branch 'origin/master'