Fixed normal bug EXT-6581 ('Buy' floater looks corrupted after size reducing)

-increased floater minimal width
-decreased width of TextBox with truncated string and used 'use_ellipses' for it
-deleted overriden button width dimension in DE locale

Reviewed by Vadim Savchuk at https://codereview.productengine.com/secondlife/r/315/

--HG--
branch : product-engine

indra/newview/skins/default/xui/de/floater_buy_object.xml

@@ -6,7 +6,7 @@
 	<text name="buy_text">
 		[AMOUNT] L$ von [NAME] kaufen?
 	</text>
-	<button label="Abbrechen" label_selected="Abbrechen" name="cancel_btn" width="73"/>
+	<button label="Abbrechen" label_selected="Abbrechen" name="cancel_btn"/>
 	<button label="Kaufen" label_selected="Kaufen" name="buy_btn"/>
 	<text name="title_buy_text">
 		Kaufen

indra/newview/skins/default/xui/en/floater_buy_object.xml

@@ -5,7 +5,7 @@
  height="290"
  layout="topleft"
  min_height="150"
- min_width="200"
+ min_width="225"
  name="contents"
  help_topic="contents"
  save_rect="true"
@@ -52,7 +52,7 @@
     <text
      type="string"
      length="1"
-     follows="all"
+     follows="left|top|right"
      font="SansSerif"
      height="16"
      layout="topleft"
@@ -90,7 +90,8 @@
      name="buy_text"
      text_color="white"
      top_pad="5"
-     width="276">
+     use_ellipses="true"
+     width="260">
         Buy for L$[AMOUNT] from [NAME]?
     </text>
     <button