ME: changed queries that filter by id_string and username to use iexact in viewer's view.py
ME: changed queries that filter by id_string and username to use iexact in viewer's view.py

piqoni/onadata,jomolinare/kobocat,GeoODK/onadata,jomolinare/kobocat,jomolinare/kobocat,jomolinare/kobocat,kobotoolbox/kobocat,smn/onadata,qlands/onadata,GeoODK/onadata,mainakibui/kobocat,spatialdev/onadata,mainakibui/kobocat,spatialdev/onadata,smn/onadata,awemulya/fieldsight-kobocat,mainakibui/kobocat,sounay/flaminggo-test,hnjamba/onaclone,mainakibui/kobocat,spatialdev/onadata,qlands/onadata,awemulya/fieldsight-kobocat,sounay/flaminggo-test,kobotoolbox/kobocat,sounay/flaminggo-test,piqoni/onadata,hnjamba/onaclone,awemulya/fieldsight-kobocat,hnjamba/onaclone,GeoODK/onadata,sounay/flaminggo-test,hnjamba/onaclone,GeoODK/onadata,piqoni/onadata,awemulya/fieldsight-kobocat,qlands/onadata,kobotoolbox/kobocat,spatialdev/onadata,smn/onadata,piqoni/onadata,smn/onadata,kobotoolbox/kobocat,qlands/onadata