* Switched more flags over to options mechanism
* flag.IngestHeader
* flag.CSVEmptyAsNull and flag.CSVDelim
* flag.PingTimeout
* more flags
* flag.LogEnabled
* logging flags
* Handle shell completion filter by group
* completion: added TestCompleteAllCobraRequestCmds
* completion: added TestCompleteFilterActiveGroup
* Tests are written
* Switched most proj.Abs calls to proj.Rel
* CHANGELOG text clarification
* Dialing in config/options
* Yet more dialing in of config/options
* Refactor output writers
* YAML output for more commands
* refactor: partially moved over driver.Tuning params to options
* All knobs moved to options
* sq config edit: now has comments for options
* Major work complete on config/options overhaul
* Major work complete on config/options overhaul
* Updated help text for 'sq version'