Merge pull request #440 from SimoGecko/new_canceled_x_symbol

adds new x symbol for canceled tasks

Merge pull request #437 from BenjaminSchaaf/patch-1

Fix open link not jumping to text

Merge pull request #429 from bogdanu/sort-by-due

Implement commands for adding due date and for sorting by due date and priority

Merge pull request #427 from python-pitfalls/master

removed a comparison-to-literal pitfall

Merge pull request #416 from timgates42/bugfix_typo_omitted

docs: fix simple typo, ommited -> omitted

Merge pull request #398 from dhilowitz/patch-1

Allow headers that start with Markdown-style header characters #

Merge pull request #381 from dkalcheu/soft-eighties-colored-theme

Introducing less "toxic" variation of [eighties-colored] theme

Fix #371 (pass dayfirst arg to dateutil.parser)