Remove template command alias.

Possible confict with the --template option. Fix qt test fixtures and
update documentation.
Update log level options.

Print result when just setting options (interactive) and improve log and
color handling.
0.1.295
Support comments in interactive mode.

Such that a comment pattern (/^#/) will stop argument parsing.
0.1.296
Inject comments into documents.

When in interactive mode and a comment is specified on the command line
and the rc property console.comment.inject is not *false* the comment is
injected into the document to be printed wherever possible provided it
does not already have a *comment* property.
0.1.297
Add sys/env command.
Add sys/hist command.
Implement sys/log command.

Collect primary and http logs into ring buffers and print the contents
of the log records on the sys/log command.
0.1.298
Work on adding sys/log --raw support.
Improve --raw sys/log output.
Update sys docs.
0.1.299
Improve noop logging.

Forcibly printed regardless of the log level.
Implement sys/err helper command.

Supports --raw.
Draft work on writing a debug log file.
Improve handling of log record prefixes.
Update log level handling.

So that the ring buffers always receive log records regardless of the
level configured with --log-level.