fix last week
Merge branch 'develop' of https://github.com/moment/moment into develop

* 'develop' of https://github.com/moment/moment:
fix ordinal
add ordinal test
Merge pull request #1546 from kruyvanna/develop

Khmer: Fix Last Week and Ordinal

@changelog
@section bugfix
@description Updated khmer language last week and put no-suffix ordinals