pom.xml --> removed incorrect hadoop version (replaced 0.20.0 with 1.1.2
FrequencyTestOldAPI --> refactored from FrequencyTest to FrequencyTestOldAPI
GapTest --> added comment
SerialTestOldAPI --> refactored from SerialTest to SerialTestOldAPI
ChiSquare --> removed unused imports, refactored var names, added javadoc comemnts
Evaluator --> refactored var names, added javadoc comments
SlapDash --> refactored var names, added javadoc comments; currently some printlines to be removed; refactored some methods into utility classes
PatternInputFormat --> InputFormat class for Pattern based mapping
PatternRecordReader --> RecordReader class for Pattern based mapping
HadoopJobFAiledException --> exception for if job has failed
UtilityHadoop --> class for hadoop utility methods that don't need an isntance
UtilityMath --> class for math utility methods that don't need an instance

Signed-off-by: hduser <josephwplant@gmail.com>