fixed bug on schema comparitor, prevent multiple rename candidates for the same original field
Update syntax on comparitor bug
Add compare change columns test for multiple new columns rename
Update comparitor test to use assertCount
Remove trailing whitespace
Re-add the incorrectly removed line, remove whitespace
remove more whitespace
Merge pull request #213 from leedavis81/fix-schema-comparitor

fixed bug on schema comparator, prevent multiple rename candidates for a single original field