Replace 10,11 in terms of final static int NO_TITLES

I have replaced the constants 10,11 with No_TITLES so that
we can at a future date make changes around the number of threads
which are launched at any time to fetch the JSON objects.

Signed-off-by: Aditya Prasad <adityaprasadiskool@gmail.com>
Fix the crash on fetching 2nd batch of titles

The app had crashed because the array of images used in the rows were
hardcoded only upto 10 numbers.When further images were sought
 the ArrayIndexOutOfBoundsException was encountered.

Signed-off-by: Aditya Prasad <adityaprasadiskool@gmail.com>