- Implemented replacement Config::get* methods.
- Replaced all calls throughout the code, with the new methods which
have no static values as defaults.
- Added a warning when modifying recurring tasks, that all instances of
that task may be modified. When task confirms a bulk edit the
recurrence is again indicated (thanks to Cory Donnelly).
- Fixed bug in Att::match that causes blank dates to be interpreted
as 12/31/1969, and therefore pass "xxx.before:" tests.
- Added the "cal" symlink trick to ChangeLog.
- Removed incorrect i18n tags from Config.cpp.
- Allowed .taskrc:confirmation=no to bypass Permission checking.
