Added file for exporting to learn with texts

term hint and sentences are , separated
hints are all hints not just index 0 (separated with ;)
sentences are taken from fragments with term surounded with {}
unnessecary characters ,.;:"\' \t are removed from term
Errorhandling improved
python instead of mixture between shell and python
simplejson instead of json (why I don't know)
urllib2 instead of curl
added script for downloading lessons text and audio
fetches lessons in parallel
changed how html tages are substituted
Merge pull request #2 from wajsel/lwt_lesson

Lwt lesson