add new program parameter named 
movie_calculate_all_frames
used to mark that all calculations have to be done before generation of
png's movie frames, changes in modules:
hra_math.time_domain.poincare_plot.poincare_plot
hra_math.model.parameters.movie_parameters

add a new method to generate poincare plot movie, this method uses fast
plotting library chaco (http://code.enthought.com/chaco/), 
the following improvements/changes are added:
- add a new engine worker class, which uses chaco library
   hra_math.time_domain.poincare_plot.poincare_plot_fast_movie_worker.PoincarePlotFastMovieMakerWorker
- add member to store previous poincare plot spec manager in class
  hra_math.time_domain.poincare_plot.poincare_plot_movie_maker.MiniPoincarePlotSpecManager
    to give ability to reconstruct graphical state of poincare plot for
frames created in the middle of poincare plot movie,
    this feature has meaning in multiprocessing environment