Fix matching of "select zz_utils.set_project_schema_owner_role(...)".

Up to now, it only matched at start of the file. Instead, match also at start of line.
Also, use case-insensitive matching instead of [Ss][Ee][Ll][Ee][Cc][Tt] style regexp.
Merge pull request #26 from ePaul/master

Fix matching of "select zz_utils.set_project_schema_owner_role(...)".