Fix elm_bg overlay issue:   The problem was that when you toggle show/hide overlay in ELM_BG_CENTER mode, the 'image' itself would not retain it's proper size (it would fill the whole swallow and thus not be 'centered' anymore). Solved by setting hint_min/max on the image when in centered mode.
Fix elm_bg overlay issue:
  The problem was that when you toggle show/hide overlay in
ELM_BG_CENTER mode, the 'image' itself would not retain it's proper
size (it would fill the whole swallow and thus not be 'centered'
anymore). Solved by setting hint_min/max on the image when in centered
mode.

NB: Raster this fixes that elm_bg issue I mentioned the other day so
all is well now ;)



SVN revision: 53476

tasn/elementary,rvandegrift/elementary,rvandegrift/elementary,FlorentRevest/Elementary,tasn/elementary,tasn/elementary,tasn/elementary,tasn/elementary,FlorentRevest/Elementary,rvandegrift/elementary,rvandegrift/elementary,FlorentRevest/Elementary,FlorentRevest/Elementary