Merge pull request #724 from austiine04/master

#59 mark child record as not matching an enquiry
WIP Adding search object refactoring
Refactoring EnquirySearch and ChildSearch into Search
Removing EnquirySearch
Replacing ChildSearch with Search.for(Child)
Merge branch 'master' of https://github.com/rapidftr/RapidFTR into merge_searches
Filling in missing unit tests
Merge pull request #726 from andreweskeclarke/merge_searches

Merge searches
Merge branch 'master' of https://github.com/rapidftr/RapidFTR