Hi, When attempting to convert a PDF to EPUB with the "Heuristic processing" feature enabled, the conversion fails with the message that html2text is not installed. This diff fixes the issue.
I can trigger the problem as follows: import a PDF; right-click the newly imported item; select "Convert books" > "Convert individually". Then go to the "Heuristic processing" tab and check the "Enable heuristic processing" checkbox. Click OK; after a while, it errors out. I don't have much experience with ports that use Python so not sure if my diff is 100% correct. Thanks, Caspar Schutijser
