[#941860] Merge methods for connecting with database
[#941860] Merge methods for connecting with database - refactoring
[#941860] Introduce handling possible exceptions from connect_db
[#941860] Specify exceptions handled from connect_db
Move connect_db to utils, in preparation for deleting server_utils.
Delete server_utils. Apparently, log() was dead.
Land the merging of DB connection methods. Fix bug 941860.