Establishing config parser for postgres auth

Using ConfigPaser, read in database credentials and configs
for Postgres.  Config is to be saved in ~/.config/postgres.ini
Ensuring that postgres config is accessible
Prototyping stemming functionality for text
Improving text operation tests with quantative assertions.
Prototype for loading text data to yet-to-be-defined table.
Improving tests and adding frequency dist options

Added function to extract values and counts into a dictionary from the
frequency distributions.

Tests yield files containting formated output of functions.
Removing specific punctuation from documents

Specific punctuation ',:.' made easy to remove in transformation class
to improve clarity of words being matched by frequency distribution.
Dollar signs left as they are indicitive of cash over metrics.
Increasing scope of punctuation removal and tests

Added ? and ! to punctuation removed.  Tests for
new punctuation removal improvement.