Added postgres dev to travis
Added postgres dev to travis

shilpi230/WebSync,hhqqnu/WebSync,shilpi230/WebSync,shilpi230/WebSync,shilpi230/WebSync,d4l3k/WebSync,d4l3k/WebSync,hhqqnu/WebSync,hhqqnu/WebSync,d4l3k/WebSync,hhqqnu/WebSync,d4l3k/WebSync