add accidents apriori file
Merge branch 'master' of github.com:karlo57/cs283 into accidents-apriori

* 'master' of github.com:karlo57/cs283:
  fix basket apriori
  fix basket fpgrowth
fix accidents apriori
add accidents fpgrowth
fix read.transactions
Merge branch 'accidents-fpgrowth'

* accidents-fpgrowth:
  add accidents fpgrowth
Merge branch 'accidents-apriori'

* accidents-apriori:
  fix read.transactions
  fix accidents apriori
  add accidents apriori file