keepin' it simple in the complex query.  simplify join.
keepin' it simple in the complex query.  simplify join.

for https://github.com/balderdashy/waterline-sequel/issues/53
balderdashy/waterline-sequel,takayukii/waterline-sequel,icirellik/waterline-sequel,anotherpit/waterline-sequel,waterlinejs/waterline-sequel,goraSi/waterline-sequel,jianpingw/waterline-sequel,ryanwilliamquinn/waterline-sequel