lessThan/greaterThan is strict ordering
add missing license
Add group and assertions examples to BasicExampleSimulation
Fix cookie setting, close #905
Let cookie DSL add multiple cookies at once, close #902
Fix JdbcFeederSource, close #907
Refactor Expression, rename apply into compile
Add Expression.wrap
Introduce feed(feeder, number), close #904
Directly use JDBC API instead of wrapping with a broken Iterator (hasNext shouldn't mutate)
Minor clean up