ScanRangeIntersectTest
Merge pull request #128 from tonyhuang/master

ScanRangeIntersectTest
Add intersect method to ScanRanges
take into account fixed vs variable width for bound comparison
never increment key of variable length bound
pass in isFixedLength to KeyRange constructor
remove isFixedLength from KeyRange compare functions
rename ScanRangeIntersectTest to ScanRangesTest
SkipRangeParallelIteratorRegionSplitter and tests I.
Rename ScanKeyTest to ScanUtilTest, add more tests for variable length keys, fix bugs for formuting start/stop key
Merge remote branch 'upstream/master'

Conflicts:
	src/main/java/com/salesforce/phoenix/filter/SkipScanFilter.java
	src/test/java/com/salesforce/phoenix/filter/SkipScanFilterRangeSplitTest.java
SkipRangeParallelIteratorRegionSplitter and tests II.