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/keys_parentheses.xml b/java/res/xml/keys_parentheses.xml
index 17d7285..25e89c9 100644
--- a/java/res/xml/keys_parentheses.xml
+++ b/java/res/xml/keys_parentheses.xml
@@ -24,9 +24,9 @@
     <Key
         latin:keyLabel="("
         latin:code="!code/key_left_parenthesis"
-        latin:moreKeys="!label/more_keys_for_left_parenthesis" />
+        latin:moreKeys="!text/more_keys_for_left_parenthesis" />
     <Key
         latin:keyLabel=")"
         latin:code="!code/key_right_parenthesis"
-        latin:moreKeys="!label/more_keys_for_right_parenthesis" />
+        latin:moreKeys="!text/more_keys_for_right_parenthesis" />
 </merge>