Fixed bug on simple memory allocator - 2013.08.18.

Fixed bug on simple memory allocator
  - bug allocating memory exceeding memory pool
Fixed bug on Simple memory allocator - 2013.08.18.

Fixed bug on Simple memory allocator
  - Fixed Segmentation error 11 - array index over flow
Added fixed size allocation test - 2013.08.18.

Added fixed size allocation test.
Added log print.