Add more languages

The languages added are translated at Transifex and supported by Sphinx

Change-Id: Idfd094bf827271c6480e24daf0e946e85d78c207

Makefile

@@ -16,8 +16,8 @@ OUT  = _build/out
 RSYNC_DEST ?= $(OUT)/docs
 RSYNC_OPTS ?= --verbose --archive --recursive --delete
 
-# Translation languages (other than English)
-LANGS = fr fa
+# Languages to build
+LANGS = ar bg bn ca da de el en_US eo es et eu fa fi fr he hi hi_IN hr hu id it ja ko lt ne nl pl pt pt_BR pt_PT ro ru si sk sl sr sv ta te tr vi zh_CN zh_TW
 space = $() $()
 comma = ,
 LANGS_commasep = $(subst $(space),$(comma),$(LANGS))