WIP on news publication date with tenant timezone
Convert iso date with TZ to local date in client
Remove unused tests
Make timezone configurable
Temporary fix timezone of date send by client
Add a custom iso8601 deserializer

TODO: Refactor to put deserializer in proper module
Serialize DateTime without millis; add a test
Regroup jackson DateTime ser/deserializer
Remove jackson joda module; not used for now
Merge branch 'master' into newsPublishDate

Conflicts:
	cms/pages/src/main/java/org/mayocat/cms/news/api/representations/ArticleRepresentation.java
Add json tzdata and java tools to generate it
Fix TimeZoneList regex; update the list
Use timeService to populate tz choice dropdown
Use Strings.isNullOrEmpty
Add timezone config to mayocat.yml
Update TimeZoneModuleTest with prefered format
Add UTC timezone
Merge branch 'newsPublishDate' of git://github.com/veloce/mayocat-shop into veloce-newsPublishDate
- Moved ISO8601 serializers/deserializers out of the CMS module for
reusability.
- Reused them in for the PO date creation