working on adding tez am link; update to hadoop 2.4
check for null counters; set application id for tez jobs when available
partial merge of pr/59 for pig 13
merge pr/60
taskReports fix from pr/59 that wasnt merged before
when adding tez vertices with inserted ops, add the correct edges
revert change for TezJob states until pr is approved; fix plan calculator to use node uids instead of ids when resetting successors
make lipstick work with PIG-4060
replace tez dependency to apache jar