add more index error tests for #5
Merge pull request #7 from tenderlove/indexerrors

add more index error tests for #5
Update tests.json

As you described in the README doc and patch fields are mandatory and therefore this array shouldn't contain objects with only a comment field present
Merge pull request #8 from tmbo/patch-1

Remove comment only objects
Added test for a whole document replacement patch
- Discovered python-json-patch had a problem with this scenario and
  other implentations might as well
Merge pull request #9 from wkral/replace-whole-document

Added test for a whole document replacement patch
Merge pull request #5 from json-patch/master

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