Update of localized versions of Customization manual

Rename and update of Changelog file

lib/doc/Changelog-Customization-LyX_23x.txt

@@ -0,0 +1,65 @@
+
+For lyx 2.3.0
+
+* Sec. 2.1.2: new citeengines item
+               new xtemplates item
+
+* Sec. 2.1.4: remove external_templates item
+		 
+* Sec. 5.2.6: new section (Cite engine files)
+
+* Sec. 5.3.3: new section (Cite engine file declaration)
+
+* Sec. 5.3.4->5: new CiteEngine item
+                    new CiteFramework item
+	            new MaxCiteNames item
+	            new OutlinerName item
+
+* Sec. 5.3.6->7:      new AddToToc item
+                      new PassThru
+                      new IsTocCaption
+                      new IsTocCaption item
+                      new ResumeCounter item
+                      new StepMasterCounter item
+
+* Sec. 5.3.9->10:  new AddToToc item
+                      edit InToc item
+		      new IsTocCaption item
+
+* Sec. 5.3.12->13: new section (Citation engine description)
+
+* Sec. 5.3.13->14: add CiteFormat item syntax
+                      add use instructions (2nd par.)
+		      new paragraph about special keys
+		      new paragraph about author lists
+		      word citation added (translatable text)
+		      phrase about cittengines (id.)
+                 
+* Sec. 6.2: 3rd paragraph, introduce xtemplate files
+
+
+
+For LyX 2.2.1:
+
+- sec. 5.3.9: additions in description of "LyxType"
+
+
+For LyX 2.2.0:
+
+Modified:
+
+first step:
+- sec. 5.3.4 new sentence for "Requires"
+- sec. 5.3.4 new entry "ProvideStyle"
+- sec. 5.3.6 new items for "Argument"
+- sec. 5.3.6 new entry "ParagraphGroup"
+- sec. 5.3.6 changed ifo for "Requires"
+- sec. 5.3.6 new entry "ToggleIndent"
+- sec. 5.3.8 new entries "AllowedPlacement", "AllowsSideways" and "AllowsWide"
+- sec. 5.3.9 new entry "FixedWidthPreambleEncoding"
+- sec. 5.3.9 new entry "ForceOwnlines"
+- sec. 5.3.9 new entry "ObsoletedBy"
+- sec. 6.3 new entry "pngOrjpg"
+
+second step:
+- sec. 5.1: (Spanish and Japanese only) new paths