Move satcmd to other repo and distribute saturnin as a stand-alone
shellfu library.  Users can import just the library instead of
embedding it inside their source tree, which enables them to delegate
part of the job to package manager.

We're scratching right ear with left hand...

 *  Fixed bug that prevernted saturnin_conf queries to contain spaces

Absence of quotes breaks queries with spaces.  We're already taking care
of files (implicit or given on command line).

Overview of changes:

 *  Don't hide short options from usage message and Bash autocomplete
 *  saturnin-conf now has usage message
 *  saturnin-conf now exits with useful status in some scenarios
 *  Hacked completion code together so that updating should be easier
    (command name is set only once)

 *  Cleanup and maintenance

Overview of changes:

 *  Improved help and usage messages

    Small but long wished for change; this may improve ability to
    explore apps easily.

 *  Code clean up and maintenance

Will make code less ugly at places.

Be nicer to people who get help by trial and error.

Overview of changes:

 *  Updated for shellfu 0.9.x

    New shellfu version brings about a lot of changes; this release is
    mostly about catching up with it.

 *  Use predictable meta binary name

    Applications will have updating easier if they use simple generic name
    for meta-command source file; we should set an example (that's the
    point of satcmd, after all).

 *  Minor clean up

The new Shellfu brings some large changes.  Among what touches us
directly:

 *  Most global variables were renamed (removing SHELLFU_* prefix).

 *  inigrep API has been revamped and the file merging/guessing
    feature has been dropped; it now belongs to us.

Overview of changes:

 *  Maintenance release

...or,

> ...maintain "state of the art" templates by comparing with peer
> projects.

It's easier to maintain "state of the art" templates by comparing with
peer projects.

subcommand (binary) and its arguments are both already is debug-shown
inside saturnin__runsc; cases when that does not get called are normally
not interesting.

Overview of changes:

 *  Added "last git hash" to application version meta-data (--saturnin-get-*)
 *  Improve meta command template
 *  Build system maintenance

Overview of changes:

 *  Changed default cache path to under .cache subdir
 *  Added --saturnin-get-* for printing Saturnin internal info
 *  Simplified test suite a bit with new TFKit
 *  Enabled Debian packaging
 *  Repo maintenance and cleanup

These were accidentally left after creating the test from template.