Fix confusable "label" usage, use "text" instead

* Rename makelabel tool to maketext
* Rename KeyboardLablesSet class to KeyboardTextsSet
* Rename "!label/name" to "!text/name"

Change-Id: Ia9494a89fe56f20ca8e8fedb253adbcf8b771bd3
diff --git a/java/res/xml-sw600dp/rows_symbols4.xml b/java/res/xml-sw600dp/rows_symbols4.xml
index afa2652..baa090c 100644
--- a/java/res/xml-sw600dp/rows_symbols4.xml
+++ b/java/res/xml-sw600dp/rows_symbols4.xml
@@ -37,7 +37,7 @@
             latin:keyWidth="39.750%p" />
         <Key
             latin:keyLabel="&quot;"
-            latin:moreKeys="!label/more_keys_for_tablet_double_quote" />
+            latin:moreKeys="!text/more_keys_for_tablet_double_quote" />
         <Key
             latin:keyLabel="_" />
         <Spacer