Merge pull request #2 from mcna/master

Fix for format-timestring's destination argument
Fix infinite loop in certain timezones
Updated gitignore file from darcs' boring file
Implement ISO week date format

New %timestamp-decode-iso-week function and supporting
FORMAT-TIMESTRING changes, including an +iso-week-format+ constant.
fix encode/decode incongruence caused by changing decode-timestamp
add iso week date formatting tests
Update documentation with ISO week date options
Merge pull request #5 from felideon/iso-week-date

Implement support for ISO week dates
Merge branch 'master' of github.com:dlowe-net/local-time