PARQUET-135: Input location is not getting set for the getStatistics in ParquetLoader when using two different loaders within a Pig script.

Author: elif dede <edede@twitter.com>

Closes #86 from elifdd/parquetLoader_error_PARQUET-135 and squashes the following commits:

b0150ee [elif dede] fixed white space
bdb381a [elif dede] PARQUET-135: Call setInput from getStatistics in ParquetLoader to fix ReduceEstimator errors in pig jobs