Comments and code organization. New files.

cluster_eml_docs.py:
+# Some code that uses MR to summarize text in the map phase, and then
group
+# them in the reduce phase using topic similarity. Not working.
+

eml_mr.py:
+# Some primitives that use MR native framework from MongoDB to get
some basci
+# stats from the data. It generates data to plot histograms
+
+
eml_similarities.py:
+# Deprecated code.
+
main.py:
+# Main python script to connect to DB, load some primitives to start
working.
+# You are supposed to have the EML documents in a local MongoDB
instance and on
+# a collection named 'all'.
+
mine_abstracts.py:
+# Some code to mine abstracts to do interesting things with them.
+
mr_keys_agrovoc.py:
+# The idea of this script is to see if the AGROVOC terms extracted
from
+# the abstract and other elements from EML documents, with the actual
keywords
+# provided in the EML module eml['dataset']['keyWordset']
+
+
case_study_dates.py:
+# This code implements the case study conducted on the paper. It tries
to measure
+# the time the experiment lasted vs the time that lasted until the
publication
+# of the associated paper.
+
mine_dataset_datatables.py:
Some scripts to mine data from 'dataTable' section in 'dataset'.
mine_dataset_methods.py:
Some code to mine the 'eml-methods' module.
plot_data.py:
Prepare data to plot. Uses matplotlib.