0.8.2

- Fix time calculation
- build: Fix intltool lock file problem during make distcheck
- Fix compilation warnings
- autoconf: AM_CONFIG_HEADER -> AC_CONFIG_HEADERS
- Update `.gitignore`
- datetime: replace deprecated GTimeVal
- Translation Updates:
  Belarusian, English (Canada), Hebrew, Norwegian Bokmål, Slovenian,
  Spanish, Turkish

xfce4-datetime-plugin-0.8.1

datetime-0.8.0

xfce4-datetime-plugin-0.7.1

xfce4-datetime-plugin 0.7.0

xfce4-datetime-plugin-0.6.2

create tag: datetime-0.6.1

create tag: datetime-0.6.0

create tag: datetime-0.5.0

create tag: datetime-0.4.3

create tag: datetime-0.4.2

create tag: datetime-0.4.1

create tag: datetime-0.4.0

create tag: datetime-0.3.2

create tag: datetime-0.3.0

create tag: datetime-0.3.1