add:
- equals() method for HBaseTap
- test to instantiate two Taps with identical fields on different tables and check for equality (should fail)
testcase for HBaseTap.equals() - identical fields on disparate tables
clean up testcase
added exclude
added versioning, cp fix for unit tests
fixed hbase as url via path error, properly constructs columns array, added debug data to build
Merge branch 'master' of git://github.com/kcm/cascading.hbase into hbase-0.20
add table name
support table with only a key
hbase doesn't support tables with just a key, removing ctor
fixed bug where null cells where not adding nulls to tuple, update #equals() and #hashCode(), set nulls in tuple, not empty strings.
set null when value is null
allow for quorum names override
set quorum name appropriately
minor refactoring
Upgraded code to match hbase 0.21
Some fixes to hbase-site for tests
Fixed the readme
Merge remote branch 'origin/hbase-0.20' into hbase-0.21

Conflicts:
	src/java/cascading/hbase/HBaseScheme.java
Fixed equals bug and added new test