Document the hy-arevmda => hyw change.

CHANGELOG.md

@@ -10,6 +10,10 @@ The espeak-ng project is a fork of the espeak project.
 ### 1.49.3 - (In Development)
 
 *  Add a `--disable-rpath` option to prevent libtool hardcoding rpaths in the executable.
+*  Renamed the `hy-arevmda` language to `hyw`, following the 2018-03-30 change to the
+   BCP 47 language subtag registry making the newly registered `hyw` language code the
+   preferred value for `hy-arevmda`. This change keeps support for detecting the
+   `hy-arevela` and `hy-arevmda` language tags.
 *  Add more tests to check the various parts of espeak-ng.
 *  Various changes to clean up the codebase.
 *  Fix various compiler warnings (`-Winitialized`, `-Wmissing-prototypes`, `-Wreturn-type`,

docs/languages.md

@@ -18,7 +18,7 @@ The 100 supported languages and accents are:
 | `sem`       | `ar`              | Semitic               | Arabic                      |                        |
 | `roa`       | `an`              | Romance               | Aragonese                   |                        |
 | `ine`       | `hy`              | Indo-European         | Armenian                    | East Armenian          |
-| `ine`       | `hy-arevmda`      | Indo-European         | Armenian                    | West Armenian          |
+| `ine`       | `hyw`             | Indo-European         | Armenian                    | West Armenian          |
 | `inc`       | `as`              | Indic                 | Assamese                    |                        |
 | `trk`       | `az`              | Turkic                | Azerbaijani                 |                        |
 |             | `eu`              |                       | Basque                      |                        |