Update package.json to use latest node-postures
Update package.json to use latest node-postures

Resolve #1371
- Fix pg authentication error 
- Update package.json to use pg 4.5.5
tgriesser/knex,noodle/knex,WaltRock/knex,carragom/knex,statyan/knex,carragom/knex,abegines/knex,Atlantis-Software/knex,wubzz/knex,WaltRock/knex,tgriesser/knex,statyan/knex,Atlantis-Software/knex,CorvusCorrax/knex,wubzz/knex,abegines/knex,CorvusCorrax/knex,noodle/knex,tgriesser/knex