Made add_pun functional and changed dictionary structure.
Changed starting value of best_pun in both select_pun and generate_pun methods to better reflect dictionary.
Moved from Levenshtein to difflib for string comparisons.
Added doctest to select_pun method.
The select_pun method now saves punctuation marks (at the end of strings).
Added additional doctests and a new auto replacement for ink.
Added base Error clase for module.
Added ability to run module from command line.
Fixed issue in select_pun where words not containing punctuation became empty strings.
Ignoring rope files.
Version += 0.1