Fix moment deprecation warnings

* This is still a little vague however it looks like it should be `locale` instead of `localeData` and does appear to work on dev.
* Update dependency in package to current version

External ref https://github.com/moment/moment/issues/1879#issuecomment-55341059

Affects #315
Merge pull request #368 from Martii/Issue-315momentDeprecationUpdates

Fix moment deprecation warnings

auto-merge