Added multithreading. The app sites are now
crawled on a per thread bassis. This is innefficient memory wise
so the nect version we will use a thread pool.
Update README
Changes the name of the script to extension PY! I had it as PL!
Merge branch 'master' of github.com:factoryEquipment/Android-Market-Crawler
Update README
Update crawlMarket.py
Merge branch 'master' into myChanges