@no_flood to eliminate identical function calls

This minor release mainly adds @no_flood decorator

Features

threading

• Added @no_flood decorator to eliminate multiple calls to the same function

logger_utils

• Replace multiprocess_formatter bool with formatter_insert str so we can insert virtually any logger format we want

Fixes

threading

• Fixed @threading decorator for Python 3.3+ (use daemon=True)

file_utils

• Fixed remove_files_on_timestamp_delta() which included directories and obviously failed
• More Python 2.7 fixes