Added gpad test data
Finished the bulkloader method
Added few tests for add data and bulkloader methods
use append to put data in the slice
added check for presence of key in the bucket map
Added a tables attribute for sql backend type
Changed the count value expected from testing
Skip first entry when extracting additonal references
Added regexp for ignoring blank lines
Added check for empty data buckets
Added tests for data in staging tables
added data with multiple referernces
tests for individual row
added an unique id along with *with* field
Merge pull request #2 from dictyBase/feature/memory2staging

Feature/memory2staging