HIVE-5367: fix hive-tez build after tez updates (Thejas Nair via Gunther Hagleitner)

git-svn-id: https://svn.apache.org/repos/asf/hive/branches/tez@1526384 13f79535-47bb-0310-9956-ffa450edef68
Adding TezProcessor and record processors
switch to use TezProcessor as processor
remove commented code
don't set execmapper.setdone
for now, tezprocessor always thinks its a map
fix tez packaging changes
fixes to get map tasks working with MapProcessor
fixes tez integration issues, npe