Modified test cases to use the updated execute API.
Docs changes to reflect the change in execute API.
Fix for jenkins to run npm test for every commit.
Fix for segfault when key object is NULL or key value is NULL.
Updated the version number in package.json which I missed earlier
Fixing doc errors in the UDF API.
Added indices of UDF APIs to Client object.
Merge pull request #5 from citrusleaf/rec_udf

Rec udf
Fixes #15 using Number::New() instead of Integer::New() when reading integers from database
v1.0.19