modified:   README.md
fixed blogspot localized url
modified:   clueweb12facc_to_mention.py
possible lowercasing
modified:   clueweb12facc_to_mention.py
pep8
modified:   clueweb12facc_to_mention.py
- encoding
- lowercasing
- return bug in reversing
new file:   altnames.py
this will compute alternative names from two computed dicts
modified:   README.md
updated with altnames usage