2014-07-21    4.0.0
-------------------
   * Release v. 4.0.0
   `SpeedIT` as of version 4.0 (20140721)` is not backwards compatible

   * UPDATED, IMPROVEMENTS:
      - BenchmarkIT.py:
         - added option to run only once: run_sec=-1
         - added option to return the inner code-block: run_sec=None
         - added argument: to repeat: run the whole setup multiple times: repeat=3
         - added argument: to enable garbage collection during the timing: with_gc=True
         - added argument: rank_by: best, average
      - DisassembleIT.py
         - removed unused arguments
      - main functions: all return now a ready txt string instead of a list of lines
         - to reflect that renamed them:
            - speed_it > speed_it,
            - speedit_func_benchmark_list > speedit_benchmark,
            - speedit_func_disassemble_list > speedit_disassemble,
            - speedit_func_line_memory_list > speedit_line_memory,
            - speedit_func_profile_list > speedit_profile
      - Benchmark-IT, Profile-IT, Line-Memory-Profile-IT, Disassemble-IT
         - reorganized keyword arguments so that the common once are in front

   * REMOVED:
      - couple of Examples