datestr:
- add format specifiers %1 and %2 for timezone hours and minutes
- remove timezone and timezone format options
- correctly find timezone hours and minutes for fractional and negative timezones
- update users
strdate:
- correctly find timezone hours and minutes for fractional and negative timezones
Useful for creating XML documents directly from Hg logging. Can also be used for
HTML. For use in content, will escape '&', '<', and for completeness '>'
(although it is not strictly necessary). For use in attributes, will also escape
' and ". Will also replace nonprinting (ASCII) control characters with spaces,
since these are illegal in XML.
