*  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.

Overview of changes:

 *  Heavily simplify template maintenance
 *  Update MKit to version v0.0.9
 *  Update MKit packaging meta-data
 *  Add packaging for demo kit
 *  Fix and improve demo kit
 *  Lot of refactoring
 *  Improve docs