extraction sql
use isLast for resultset check
remove debugging statement
Merge branch 'develop' of github.com:feiranwang/deepdive into feiranwang-develop
add new sampler
force ::text conversion for weight command
fix issuing query bug in grounding
moved serialization test folder into test
Merge pull request #18 from feiranwang/develop2

Fix test issues, clean up code
Fix import
Merge branch 'feiranwang-develop' into develop
multinomial
Merge branch 'develop' of https://github.com/HazyResearch/deepdive into develop2
change multinomial examples
add predicate field in FactorFunctionVariable, add equal predicate parsing, add cardinality table, support with/without equal predicate
update sampler