Log Message:
Update task 1.9.1 -> 1.9.2.

Changes:

- Added feature #320, so the command "task 123" is interpreted as an
  implicit "task info 123" command (thanks to John Florian).

- Added feature #326, allowing tasks to be added in the completed
  state, by using the 'log' command in place of 'add' (thanks to Cory
  Donnelly).

- Added features #36 and #37, providing annual versions of the
  'history' and 'ghistory' command as 'history.annual' and
  'ghistory.annual'.

- Added feature #363 supporting iCalendar/vcalendar (RFC-2445,
  RFC-5545, RFC-5546) export via the 'export.ical' command.

- Added feature #390, an extra dateformat for annotations (thanks to
  Cory Donnelly).

- Added feature #407, a new 'task show' command to display the current
  configuration settings or just the ones matching a search
  string. 'task config' is now only used to set new configuration
  values.

- Added feature #298, supporting a configurable number of future
  recurring tasks that are generated.

- Added feature #412, which allows the 'projects' and 'tags' commands
  to be list all used projects/tags, not just the ones used in current
  pending tasks. Controlled by the 'list.all.projects' and
  'list.all.tags' configuration variables (thanks to Dirk Deimeke).

- Added feature #415, which supports displaying just a single page of
  tasks, by specifying either 'limit:page' to a command, or
  'report.xxx.limit:page' in a report specification (thanks to
  T. Charles Yun).

- Improvements to the man pages (thanks to T. Charles Yun).

- Modified the 'next' report to only display one page, by default.

- Added feature #408, making it possible to delete annotations with
  the new denotate command and the provided description (thanks to
  Dirk Deimeke).

- Added support for more varied durations when specifying recurring
  tasks, such as '3 mths' or '24 hrs'.

- The ghistory graph bars can now be colored with 'color.history.add',
  'color.history.done' and 'color.history.delete' configuration
  variables.

- Added feature #156, so that task supports both a 'side' and 'diff'
  style of undo.

- Distribution now includes 7 theme files, for 16- and 256-color
  terminals.

- Task now defaults to using the equivalent to the dark-16.theme.

- Fixed bug #406 so that task now includes command aliases in the
  _commands helper command used by shell completion scripts.

- Fixed bug #211 - it was unclear which commands modify a task
  description.

- Fixed bug #411, clarifying that the 'projects' command only lists
  projects for which there are pending tasks (thanks to Dirk Deimeke).

- Fixed bug #414, that caused filtering on the presence or absence of
  tags containing Unicode characters to fail (thanks to Michal
  Josífko).* Fixed bug #416, which caused sorting on a date to fail
  if the year was not included in the dateformat (thanks to Michelle
  Crane).

- Fixed bug #417, which caused sorting on countdown and age fields to
  be wrong (thanks to Michell Crane).

- Fixed bug #418, which caused the attribute modifier 'due.before' to
  fail if the year was not included in the dateformat (thanks to
  Michelle Crane).* Fixed bug #132, which failed to set a sort order
  so that active tasks sort higher than inactive tasks, all things
  being equal.

- Fixed bug #405, which incorrectly compared dates on tasks created by
  versions earlier than 1.9.1 to those created by 1.9.1 or later
  (thanks to Ivo Jimenez).

- Fixed bug #420, missing 'ID' from help text (thanks to Ed Neville).

- Fixed bug that prevented 'task list priority.above:L' from working.

- Fixed bug that miscalculated terminal width for the ghistory.annual
  report.

- Fixed wording (support issue #383) when modifying a recurring task
  (thanks to T. Charles Yun).