Minor fixes to MCHMS in response to round 1 of testing.
Added check for EDD date > encounter date in MOH257 (https://www.pivotaltracker.com/story/show/61956596)
Merge pull request #74 from gitahi86/master

Minor fixes to MCHMS
Merge branch 'master' of github.com:I-TECH/openmrs-module-kenyaemr