fixed a bug in the key-value schema query.
illegal sql was generated when the ruby object name is different from the table name.
The issue is now fixed and a test was added.
fixed code for active record 2 backward compatibility
Merge pull request #38 from abenari/master

Key value schema join construction error
Fixed a couple of incredibly minor typos and whitespace inconsistencies
Added failing test and fixed bug associated with implicit type conversion of nils from force encoded strings
Tiny fix so new test only runs when Encoding is defined
Merge pull request #44 from brocktimus/encoding_bug_squashed

Fix for issue #33
Merge pull request #45 from brocktimus/master

Added Ruby 2.0.0 to Travis CI configuration
Merge pull request #42 from brocktimus/typos

Fixed a couple of incredibly minor typos and whitespace inconsistencies