History
-------
2014/02/08 - v3.0
   * This version is based on improvements from 3DInteractive GmbH
   * Interface changed to allow more than one memory pool
   * Separated pool handling from control structure (adding, removing, debugging)
   * Control structure and pools can still be constructed in the same memory block
   * Memory blocks for control structure and pools are checked for alignment
   * Added functions to retrieve control structure size, alignment size, min and
     max block size, overhead of pool structure, and overhead of a single allocation
   * Minimal Pool size is tlsf_block_size_min() + tlsf_pool_overhead()
   * Pool must be empty when it is removed, in order to allow O(1) removal

2011/10/20 - v2.0
   * 64-bit support
   * More compiler intrinsics for ffs/fls
   * ffs/fls verification during TLSF creation in debug builds

2008/04/04 - v1.9
   * Add tlsf_heap_check, a heap integrity check
   * Support a predefined tlsf_assert macro
   * Fix realloc case where block should shrink; if adjacent block is
     in use, execution would go down the slow path

2007/02/08 - v1.8
   * Fix for unnecessary reallocation in tlsf_realloc

2007/02/03 - v1.7
   * tlsf_heap_walk takes a callback
   * tlsf_realloc now returns NULL on failure
   * tlsf_memalign optimization for 4-byte alignment
   * Usage of size_t where appropriate

2006/11/21 - v1.6
   * ffs/fls broken out into tlsfbits.h
   * tlsf_overhead queries per-pool overhead

2006/11/07 - v1.5
   * Smart realloc implementation
   * Smart memalign implementation

2006/10/11 - v1.4
   * Add some ffs/fls implementations
   * Minor code footprint reduction

2006/09/14 - v1.3
   * Profiling indicates heavy use of blocks of
     size 1-128, so implement small block handling
   * Reduce pool overhead by about 1kb
   * Reduce minimum block size from 32 to 12 bytes
   * Realloc bug fix

2006/09/09 - v1.2
   * Add tlsf_block_size
   * Static assertion mechanism for invariants
   * Minor bugfixes 

2006/09/01 - v1.1
   * Add tlsf_realloc
   * Add tlsf_walk_heap

2006/08/25 - v1.0
   * First release
