Lua

- Created new scripts/extensions directory.
- Added README for extensions.
- Started priority.lua extension.
- Implemented api_task_get and api_task_set DOM accessors.
- Removed more obsolete API.

scripts/CMakeLists.txt

@@ -1 +1 @@
-install (DIRECTORY bash fish vim zsh add-ons DESTINATION ${TASK_DOCDIR}/scripts)
+install (DIRECTORY bash fish vim zsh add-ons extensions DESTINATION ${TASK_DOCDIR}/scripts)

scripts/extensions/README

@@ -0,0 +1,8 @@
+There are several types of extension:
+
+- Hook-based
+- User Defined Attribute
+- Command
+- Format
+- DOM
+

scripts/extensions/priority.lua

@@ -0,0 +1,42 @@
+--------------------------------------------------------------------------------
+-- taskwarrior - a command line task list manager.
+--
+-- Copyright 2006 - 2011, Paul Beckingham, Federico Hernandez.
+-- All rights reserved.
+--
+-- This program is free software; you can redistribute it and/or modify it under
+-- the terms of the GNU General Public License as published by the Free Software
+-- Foundation; either version 2 of the License, or (at your option) any later
+-- version.
+--
+-- This program is distributed in the hope that it will be useful, but WITHOUT
+-- ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+-- FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
+-- details.
+--
+-- You should have received a copy of the GNU General Public License along with
+-- this program; if not, write to the
+--
+--     Free Software Foundation, Inc.,
+--     51 Franklin Street, Fifth Floor,
+--     Boston, MA
+--     02110-1301
+--     USA
+--
+--------------------------------------------------------------------------------
+
+-- Extension to implement 'priority' as a user-defined attribute.
+
+-- Required for all extensions.
+function install ()
+  return 'Priority',                       -- Name
+         1.0,                              -- Version
+         'uda',                            -- Type
+         'Implements priority attribute',  -- Description
+         'Paul Beckingham',                -- Author
+         'paul@beckingham.net',            -- Contact
+         '© 2011, Göteborg Bit Factory'    -- Copyright
+end
+
+-- TODO Required for UDA extensions.
+