Refactor contact channel validation
Refactor contact channel validation

codefortulsa/citygram,beetz12/citygram,codeforamerica/citygram,codeforamerica/citygram,beetz12/citygram,chriswhong/citygram,shravan20084312/citygram,beetz12/citygram,codefortulsa/citygram,BetaNYC/citygram-nyc,shravan20084312/citygram,BetaNYC/citygram-nyc,openchattanooga/citygram,codeforamerica/citygram,openchattanooga/citygram,codeforamerica/citygram,elberdev/citygram-nyc,elberdev/citygram-nyc,elberdev/citygram-nyc,BetaNYC/citygram-nyc,BetaNYC/citygram-nyc,shravan20084312/citygram,chriswhong/citygram,codefortulsa/citygram