Merge pull request #1 from vaidikkp/master

Code Style Changes and Bug Fixes
Merge pull request #2 from vaidikkp/master

added methods, code cleanup, beautification
Update lib/plivo.js
Update lib/plivo.js~
deleted duplicate plivo.js
Merge branch 'master' of https://github.com/vaidikkp/plivo-node into vaidikkp-master
Merge pull request #4 from vaidikkp/master

get_account parameters not required. made optional.
Merge pull request #5 from vaidikkp/master

A better README was required for release.
Update README.md

random spacing
Update README.md

remove random spacing..
Update README.md

add travis branch for build status
Update package.json

initial version
Update README.md
added new tag and bumped version in package.json