Added option Culture parameter to DateTime.Humanize
Fixed formatting
Reverted changes to DateHumanize (testing with both implicit & explicit culture)
Added a test for getting culture-specific resource with explicitly specified culture
Fixed method's comment
Only using optional "Culture" parameter for public methods
+ unit tests for DateTime.Humanize with explicit culure
Updated readme to reflect new "culture" parameter for DateTime.Humanize
Updated release_notes to reflect new "culture" parameter for DateTime.Humanize
Added optional Culture parameter to TimeSpan.Humanize
1) Made Date/Time formatters to own "culture";
2) Explicitly registering DefaultFormatter's for the supported languages in FormatterRegistry's constructor
renamed a few test methods
LocaliserRegistry to accept instances instead of factory methods
minor readme cleanup
Merge pull request #293 from MehdiK/culture-parameter

Added optional Culture parameter to DateTime.Humanize and TimeSpan.Humanize