skins2: fix RadialSlider

    - fix several parameters wrongly spelled (case sensitive)
     (led to crash in atof)
    - fix uninitialized m_position variable
(cherry picked from commit a2bd0738d74befa4444d3d1a3101983265781cc3)

modules/gui/skins2/controls/ctrl_radialslider.cpp

@@ -41,7 +41,7 @@ CtrlRadialSlider::CtrlRadialSlider( intf_thread_t *pIntf,
     CtrlGeneric( pIntf, rHelp, pVisible ), m_fsm( pIntf ), m_numImg( numImg ),
     m_rVariable( rVariable ), m_minAngle( minAngle ), m_maxAngle( maxAngle ),
     m_cmdUpDown( this ), m_cmdDownUp( this ),
-    m_cmdMove( this )
+    m_cmdMove( this ), m_position( 0 )
 {
     // Build the images of the sequence
     m_pImgSeq = OSFactory::instance( getIntf() )->createOSGraphics(

modules/gui/skins2/parser/skin_parser.cpp

@@ -458,8 +458,8 @@ void SkinParser::handleBeginElement( const string &rName, AttrList_t &attr )
                 attr["lefttop"], attr["rightbottom"],
                 convertBoolean( attr["xkeepratio"] ),
                 convertBoolean( attr["ykeepratio"] ), attr["sequence"],
-                atoi( attr["nbImages"] ), atof( attr["minAngle"] ) * M_PI /180,
-                atof( attr["maxAngle"] ) * M_PI / 180, attr["value"],
+                atoi( attr["nbimages"] ), atof( attr["minangle"] ) * M_PI /180,
+                atof( attr["maxangle"] ) * M_PI / 180, attr["value"],
                 attr["tooltiptext"], attr["help"], m_curLayer, m_curWindowId,
                 m_curLayoutId, m_panelStack.back() );
         m_curLayer++;