Stable version v1.6.1

• Added limit_line_length parameter:
  log only maximum n characters for each traceback line. This prevents dumping the whole huge content of the variable into the log. n=1000 by default.

• Added analyze_raise_statement parameter:
  logger-tt no longer analyzes the raise statement by default. This avoids logging value of variables on the raise statement two time, especially when the content of these variables are huge.