strftime: correct %z dumping
undo debug
#27: parsing: assume local time zone by default
#27: add and fix tests
Merge pull request #42 from benfitzpatrick/strftime.timezone_fix

strftime: correct %z dumping
#27: refactor time zone assumption API
#27: fix get_time_zone dumper for 'Z'
Merge branch 'master' into set_local_timezones_default
#27: implement feedback and tidy up
Merge pull request #43 from benfitzpatrick/set_local_timezones_default

Set the local time zone as the default