Update doc/man/taskopen.1

s/filter and list/filter, list and open/
Merge remote-tracking branch 'origin/master' into devel
Update README.markdown

Expanded "What does it do?" section.
Update README.markdown

What does it do, further cleanup
Update README.markdown

more text tweaks and cleanups
Merge remote-tracking branch 'origin/master' into devel
Create config file if it doesn't exist
Auto-commit (bumped revision)
NOTES_REGEX matching

Annotations are now considered to be "Notes" links if
either the label or the descriptive part matches NOTES_REGEX, e.g.:

"Notes: descriptive text"

or

"outline: Notes"
Auto-commit (bumped revision)
pre-commit hook

Generates html versions of man pages.
Fixed man page formatting