Adding quotations and testing dollar amounts
Creating indexes of token locations in document

The index location of tokens in the document to be potentially
used as graph edges between the token nodes.
Punctuation removal now parameterized

Being able to change which punctuation is removed
by the function remove_punctuation is no possible thanks
to optional parameter overriding.  Fixed unit tests
to match.
Starting work on linking words for graph search
For an index, finding relative local tokens

For a given index, find the nearby token indexes which will be
used to create links from the index token.
Cleaning up function naming and tests

Functions improved to match index finding functions.  Removed stderr
print statements so tests run cleanly.
Bug fix for finding index spread ends of tokenlist

Due to the way the clamp functionality worked, the actual index which
the spread was supposed to wrap would be included in the returned list
if the index was close to the beginning and end of the token_list.
Fixed indexing of linked tokens

Token indexing wasn't properly associating indexes of tokens.
Thus token links weren't accurate.
Creating actual assertions for the Link creation
Added stop_word function to keep stoped indexes

In order to reference the placement in original documents, the index
placeholders of all words will need to be kept. Added new function:
stop_word_placeheld which returns list of words and placehodlers.
Changes to preserve but ignore stopped indexes

In order to ignore the blank placeholders and still run linking
operation over the tokens. Improved tests to use small data set.
Updated requirements file, probably needs cleaning
Updating README documentation.
Merge branch 'transform'
New text processing to create token linking