Support for 'hh' and 'h' strings

Added support for ‘hh’ and ‘h’ parse strings, just needed to be added
into the mapper…
Add Icelandic locale with tests

The Icelandic timeframes have different declensions
depending on if we are formating for the past or the future.
Add ability to localize meridians (am/pm)

Add Icelandic meridians.
Add Danish locale
Merge pull request #94 from holmars/master

Add Danish and Icelandic locales
Merge pull request #89 from averyonghub/master

Support for 'hh' and 'h' strings