This reverts commit c074572748.

* Fix rollover bug

Fixes #743

* Snap to edges in no rollover multiline scroll mode

* Style fix

Fixes #743

* Add nerdfont defs file and normalize vars

* some cleanup

* address feedback

* one more spacing issue

* address feedback

* Add support for Alexey Tourbin's QSORT code

See https://github.com/svpv/qsort

* Add benchmark scripts and compilation mode

Compile with `make O_BENCHMARK=1`, and run benchmarks with e.g.:
  ./misc/test/benchmark.sh ./nnn '/' '/usr/bin' '/usr/lib' > benchdata
You can then plot basic violin graphs with:
  ./misc/test/plot-bench.py benchdata

* Update style, doc, haiku support, fix lint

* Add icons

* Fix build break

* Fix icon position in detailed mode

* Various fixes

* Provision for icon specific colors

No icons with oldcolor. Small optimizatons

* Update Makefiles

Small refinement for other matching

An ESCDELAY of 0 can break long escape sequences, such as the arrow keys,
on slower terminals.

This reverts commit 2599564e64.

- Add a native vector icon for Haiku (it hasn't been Haiku-ified yet however)
- Add a rdef file (specifies application metadata)
- Add clipboard support, notififcation support, and basic nuke support
- Fix support for fortunes on Haiku ("-s" option is not available on Haiku)
- Cleanup Haiku recipe