Set global height attributes for buttons, combo boxes, and flyout buttons as...

Set global height attributes for buttons, combo boxes, and flyout buttons as part of cleaning up the widget test floater for QA testing. Removed in-line height settings in the floater xml.

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

@@ -88,7 +88,6 @@
   <!-- First column -->
 
   <button
-   height="20"
    follows="top|left"
    label="Button"
    layout="topleft"
@@ -100,7 +99,6 @@
   <!-- "flyout_button" is a button that can spawn a menu -->
   <flyout_button
    follows="top|left"
-   height="20"
    label="Flyout"
    layout="topleft"
    left_delta="0"
@@ -136,7 +134,6 @@
   <combo_box
    bottom_delta="35"
    follows="top|left"
-   height="16"
    width="150"
    label="Combobox"
    layout="topleft"
@@ -343,12 +340,10 @@ line to actually fit
   <tab_container
    follows="all"
    height="400"
-   halign="center"
    layout="topleft"
    left="525"
    name="group_tab_container"
    tab_position="top"
-   tab_height="20"
    tool_tip="tab container"
    top="80"
    width="300">

indra/newview/skins/default/xui/en/widgets/button.xml

@@ -22,5 +22,6 @@
         hover_glow_amount="0.15"
         halign="center"
         pad_bottom="3" 
+        height="23"
         scale_image="true">
 </button>

indra/newview/skins/default/xui/en/widgets/combo_box.xml

@@ -2,6 +2,7 @@
 <combo_box font="SansSerifSmall"
            list_position="below"
            max_chars="20"
+           height="23"
            follows="right|top">
   <combo_box.combo_button name="Combobox Button"
                           hover_glow_amount="0.15"

indra/newview/skins/default/xui/en/widgets/flyout_button.xml

 <?xml version="1.0" encoding="utf-8" standalone="yes" ?>
-<flyout_button list_position="below">
+<flyout_button list_position="below" height="23">
   <action_button scale_image="true"
                 image_selected="SegmentedBtn_Left_Selected"
                 image_unselected="SegmentedBtn_Left_Off"