test preloader

Signed-off-by: Randell Quitain <cprjk.buzz@gmail.com>
check if images is loaded

Signed-off-by: Randell Quitain <cprjk.buzz@gmail.com>
min-height for preloader

Signed-off-by: Randell Quitain <cprjk.buzz@gmail.com>
much simpler img preloader

Signed-off-by: Randell Quitain <cprjk.buzz@gmail.com>
used standard size hero for viewing.

Signed-off-by: Randell Quitain <cprjk.buzz@gmail.com>