Fix on input format class properties.

Now we set the correct mrv2 parameters.
Extended examples/input_format to show usage.
Fix on input format class properties.

Now we set the correct mrv2 parameters.
Extended examples/input_format to show usage.
Resync with remote 'input_format_mrv2'

 https://github.com/elzaggo/pydoop into input_format_mrv2
Merge remote-tracking branch 'upstream/develop' into input_format_mrv2
Merge remote-tracking branch 'upstream/develop' into input_format_mrv2
Input Format example: Added support for < hdp2.0
Fixed shell driver.
Merge branch 'develop' into input_format_mrv2
Compile java mapreduce submitter if hadoop >=2.0.
Will not compile mapreduce submit for hd < (2.2.0)

Hadoop 2.0.0 in CDH will not support compilation of mapreduce submitter.
Added explicit check on hadoop version in examples/input_format.
restored full travis conf
Merge pull request #64 from elzaggo/input_format_mrv2

Input format mrv2 support.