Bug fixes on salted table and additional tests.
SaltedTableVarLengthRowKeyTest
Update README.md
Update README.md
SaltedTableUpsertSelectTest.
Enfore Splits do not span across salt bucket boundaries I
Throw exception if split is specified on salted table with rowkeyorder on.
Test fix.
Address findbugs warning.
Merge pull request #204 from tonyhuang/salttest

Tests for salted table and various bug fixes.
Merge branch 'master' into findbug
Merge pull request #205 from tonyhuang/findbug

Address findbugs warning.