slideshow test case update.

influenced case:
i_sildeshow.bas

1. give more safe coordination for drawing rectangle

otherwise the testtool may 'click insert chart
icon in the slide page' by accident when trying
to 'drawing a rectangle'

2. use uno slot to Call Slide Show -> Custom Slide Show...
Signed-off-by: Jan Holesovsky <kendy@suse.cz>

testautomation/global/sid/e_all.sid

@@ -790,7 +790,7 @@ SlideShowAnimation .uno:CustomAnimation
 SlideShowSlideTransition .uno:SlideChangeWindow
 SlideShowHideSlide SID_HIDE_SLIDE
 SlideShowShowSlide SID_SHOW_SLIDE 
-SlideShowCustomSlideshow SID_CUSTOMSHOW_DLG
+SlideShowCustomSlideshow .uno:CustomShowDialog
 SlideShowCustomAnimation .uno:CustomAnimation
 
 ' ***********************************

testautomation/graphics/optional/includes/impress/i_slideshow3.inc

@@ -582,7 +582,7 @@ testcase tExtrasIndividuellePraesentation
       Kontext "NavigatorDraw"
       Naechste.Click						'/// switch to next slide ///'
       Kontext "DocumentImpress"
-      hRechteckErstellen (50,50,60,60)		'/// create rectangle ///'
+      hRechteckErstellen (30,30,40,40)		'/// create rectangle ///'
       Printlog "  - Created rectangles on all slides"
    else
       Warnlog "  No Navigator"