Excessive newlines appear before lists in converted document

[kaimantsch]

While markdown ignores more than 2 newlines, the converter currently generates 4 before lists. This creates an awkward looking document and requires a lot of search/replace to repair.

Note: this issues occurs in every case I tested, including after paragraphs and a range header types (h1, h2, h3).

Example:

## Outcomes



1. Improv

[trixr]

There is a similar issue with extra newlines before and after horizontal rules. There should only be one empty line before and one after.

Some text.



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Following text.