Converted pypi to use the simple HTML and JSON APIs
pypi: rewrote fetch script to speed it up
pypi: extended parse.py to include number of package downloads, release date and development status
pypi: small fixes to readme and parse script output
pypi: changed 'last release date' output to 'latest release date'
pypi: moved official homepage link from the external_links column to the abstract
pypi: removed official homepage link from abstract because it gets stripped automatically
Merge pull request #95 from yanirs/pypi-data-extraction-fixes

Converted pypi to use the simple HTML and JSON APIs