v0.2.5

• new parameters for sentence splitting:
  context_size_look_overhead: The number of characters to look over the context_size boundaries to detect sentence splitting characters (improves sentence detection).
  quick_yield_for_all_sentences (bool): If set to True, the generator will yield every sentence first fragment as quickly as possible (not only the first sentence first fragment)
  quick_yield_every_fragment (bool): If set to True, the generator not only yield every sentence first fragment, but also every following fragment.