Merge pull request noborus#496 from noborus/preventive-fixes

Added proactive fixes and tests

Merge pull request noborus#492 from noborus/renameFunc

Improved and changed the copy/paste function name

Merge pull request noborus#483 from noborus/fix-column-delimiter

Fixed delimiter width calculation

Merge pull request noborus#469 from noborus/improve-up

Improved display when moving the first row up

Merge pull request noborus#456 from noborus/add-process-of-count

Added process of count item in status line

Merge pull request noborus#447 from noborus/save-doc

Added save explanation

Merge pull request noborus#417 from noborus/prompt-customize

Added a way to customize the bottom status line

Updated for v0.30.0

Added new options section.
Fixed a typo.
Added settings in comments.

fixed typo and position

Merge pull request noborus#350 from noborus/memory-limit

Renamed load-limit to memory-limit