Fix for use-case 06 (table from hash)
Splice by Group and Aggregate Cols.
Added methods for reading copies of entire columns and writing entire columns
fixed bug in TNEANet::FltAttrValueEI ; modified format of TNEANet::Dump
added a check for a sorted array in Table::Partition()
Added UnionAll (union with duplicates)
implemented parallel GetPageRank() and GetHits()
Added functions to add set of rows to TTable, and constructor that creates new table from a subset of rows
Merge branch 'master' of github.com:snap-stanford/snapr
Added MapPageRank function to compute pagerank of a graph sequence and is easily parallelizable
A first working version of AddDat
Added hash table test folder.
Removed changes to TTable.
Smarter locking, modified AddDatPar to append TInt to a TIntV instead
Added hash table test folder.
Removed changes to TTable.
Smarter locking, modified AddDatPar to append TInt to a TIntV instead
Merge branch 'master' of github.com:pararthshah/snapr

Conflicts:
	snap-core/table.h
Added ifndef macros to hash_par.h