Housekeeping to blog and portfolio

Portfolio updated to show skills on cv page; techcrunch project added; reviewer role added.

Some blog posts from 2009 were moved over. This resulted in new tags and an update of all the blog post files.

- Edit 'read_tweet.py' on line 44 with twitter handles
correct tagging of a few articles
portfolio pages regenerated with include file
update the tags for charts
remove social networks tag