bug19541 - Clean up output of PYTHON tutorial examples 17 and 18.

These changes clean up display issues that marred tutorial examples
17 and 18, where "John" "Kennedy" and {Robert} {Kennedy} made people
ask why the output was so ugly.  I removed a rule from the Prolog rule
set, returned the string values individually to the client, and then
concatenaded them there.

I have migrated these changes into the training slides and delivered
the changed decks to Craig.

I don't think this is worthy of a release note.

Change-Id: I0cd1422472dbe561d5ffa0b7509bfbcc3212fdbc
Reviewed-on: https://gerrit.franz.com:9080/563
Reviewed-by: Kevin Layer <layer@franz.com>
Tested-by: Kevin Layer <layer@franz.com>
rfe9915 - Add SPARQL query to example 19 (Python tutorial)

In response to Spr37211, I have added a SPARQL query to the RDFS++
example, showing how to turn inference on and off using
tupleQuery.setIncludeInferred().

I have migrated these changes into the Python training slides and delivered the changed decks to Craig.

<release-note>
rfe9915 - Java and Python tutorials demonstrate SPARQL and RDFS++

Example19() of the Java and Python tutorials has been augmented
to demonstrate how to use a SPARQL query with RDFS++ reasoning.
</release-note>

Change-Id: I705e3568c04a85f45561cb4acf523c35bd0bcfb0
Reviewed-on: https://gerrit.franz.com:9080/573
Reviewed-by: Kevin Layer <layer@franz.com>
Tested-by: Kevin Layer <layer@franz.com>
bug19454 - In Python tutorial example, "int" maps to "long"

<release-note>
bug19454 - Python tutorial explains how "int" becomes "long"

In example15() of the Python tutorial we show registerDatatypeMapping()
requesting a nativetype "int" and AllegroGraph responding with
XMLSchema.LONG.  This is correct, and the text now explains why.
</release-note>

Change-Id: I1e58331c54dba1daee8aba226478b112164cf2ce
Reviewed-on: https://gerrit.franz.com:9080/579
Reviewed-by: Kevin Layer <layer@franz.com>
Tested-by: Kevin Layer <layer@franz.com>
rfe9831 - Python tutorial: Size matters.

Alterations to the Python API doc, the Python tutorial,
and tutorial_examples_40.py example10(), to work in
examples of conn.size() reporting on specific subgraphs.

<release-note>
rfe9831 - Python tutorial, illustrate use of conn.size() with contexts.

Example10() of the Python tutorial has been extended to
show examples of the conn.size() method returning the
number of triples found in specific subgraphs.
</release-note>

Change-Id: Ifabcaed32a1f04b1c4b1a42474cff59e95f5d84d
Reviewed-on: https://gerrit.franz.com:9080/662
Reviewed-by: Kevin Layer <layer@franz.com>
Tested-by: Kevin Layer <layer@franz.com>
rfe9821 - Make SPARQL examples more robust

Example10() has been beefed up with extensive explanation
of SPARQL's FROM, FROM DEFAULT, and FROM NAMED
operators, and an example of the UNION operator. This
commit also includes a minor update to the Python API
document.

<release-note>
rfe9821 - Make SPARQL examples more robust

Example10() of the Python tutorial has been extended to
show examples of SPARQL's FROM, FROM DEFAULT, and FROM NAMED
operators, and an example of the UNION operator.
</release-note>

Change-Id: I74e328612a563f1d00b8e92ce207d77043fe420c
Reviewed-on: https://gerrit.franz.com:9080/760
Reviewed-by: Kevin Layer <layer@franz.com>
Tested-by: Kevin Layer <layer@franz.com>