Don't print stack traces.
Add some items to history (product tour).
Don't track built files.
Add version to document title.
Remove pre-release warning from README.
Avoid duplicate entries in command history.
Annotate ascii codes with key name.
Clear screen on Ctrl-L.
Fix incorrect time due to timezones.
Update test-lib.sh.
Update tests.
Apply FIX: Replacement with priority and date doesn't replace existing date.

Fixes
* FAIL 24: replace with prepended priority and date replaces existing date
@t1100-replace.sh

https://github.com/ginatrapani/todo.txt-cli/commit/24d0fb003a8ef486c37a53cb80d28872922e206c
Apply: Accept filters for listcon, too.

https://github.com/ginatrapani/todo.txt-cli/commit/92322e7064bd4f6a7c98cf4cce367b92df3cc38c
Add help output tests (t2100-help.sh).
Apply ENH: Print usage help for all passed actions.

https://github.com/ginatrapani/todo.txt-cli/commit/97035d34257b8723faea58da169d732f718c7ebc
Fix truncated output.
Add shorthelp tests (t2120-shorthelp.sh).

https://github.com/ginatrapani/todo.txt-cli/commit/50aea1e4f001bf988d851f5f4e45b8e61981f204
Add remaining test updates.

These files are skipped because they do not apply.
Merge branch 'release/0.2.9.11'
Merge tag '0.2.9.11' into development

release