#429 fix panning for odd size viewport
#478 Double clicking overview map expand/contract button zooms in Safari
#484 conflict between _addButton of MouseToolbar and PanZoom
#485 null pointer exception on CTRL+F5 in IE for WMS.Untiled
#486 add a few sanity checks to overview map
#489 requires tag incorrect in OverviewMap.js
#498 overviewmap: rectangle has minimum height in IE
git-svn-id: http://svn.openlayers.org/branches/openlayers/2.3@2230 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
#385: building for windows users (fix license)
#453: IE gives new DOM elements a parent with fragment node type
#454: Fix tests which are breaking in Opera
#455: Util.isEquivalentUrl broken in Opera
#463: map.setBaseLayer is a bit funky
#464: Overview Map dissappears when on permalinked page
#465: allow controls to live outside viewport (for real)
#466: HTMLDivElement is still undefined in IE7 (but
OpenLayers.Util.alphaHack() is now false)
#467: isEquivalentURL() not complete for IE
#468: Overview MapLosing Rectangle
#469: Default marker is incorrectly centered
#470: Can not use "search" property IE7
#473: Remove call to checkImgURL
#474: overview map isn't properly updated when the argparser kicks in
git-svn-id: http://svn.openlayers.org/branches/openlayers/2.3@2181 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf
