[doc] Get rid of Ruby.

FEA: ItEr74S04BugFixing

TODO

@@ -63,8 +63,7 @@ Future
 * New features in Gantt window.
 * Complex features disabled by default.
 * Quick start wizard.
-* Integration services scripts that don't depend on Ruby (maybe directly with
-  Java).
+* Integration services scripts directly with Java.
 * ZK 5 migration.
 * Permission enhancements.
 * *Exit without saving* detection.

doc/src/technical/howto-develop-a-use-case-in-navalplan.rst

@@ -2387,11 +2387,11 @@ created in project repository inside ``scripts/rest-clients`` directory.
 
 .. NOTE::
 
-  Currently these scripts depends on Tidy and Ruby to be installed in your
+  Currently these scripts depends on Tidy to be installed in your
   system. You could install them in a Debian based distribution with the
   following command as root::
 
-    apt-get install tidy ruby
+    apt-get install tidy
 
 Then for this example you will create a script called
 ``export-stretches-function-templates.sh``, that will be very similar to the

scripts/rest-clients/README

@@ -1,7 +1,5 @@
 + Check you have "tidy" available from the command line.
 
-+ Check you have "/usr/bin/ruby".
-
 + chmod u+x *.sh
 
 + When working with the local application: