Bug Fix: Catch non-200 status

Add validation for non-200 status from nexmo-node library.

Update: Balance precision

Change balance precision to match dashboard in non verbose mode.

Bug Fix: Number Insight Standard

Fixed advanced number buying functionality to use Number Insight Standard instead of advanced

General improvements and cleanup

• Improved instructions
• Add Travis CI build
• Remove ES5 build from repository
• Change source and build folder names
• Update to use nexmo-node library 1.0.0-beta-4

Feature: nexmo price

Add nexmo price:* ftor find the price for SMS and Voice for any number or country.

Feature: Key management

Change nexmo app:create to allow for saving of the private key to a file

nexmo-node library update

Update easynexmo library to 0.8.4

Feature: nexmo number:update

• Update easynexmo library to cbetta/nexmo-node
• Add number:update for updating a number's callback URLS. Also add the following easy shortcuts:
  • Add link:tel
  • Add link:sms
  • Add link:vxml
  • Add link:sip
• Remove link:create and link:delete in favor of the new shortcuts.

Feature: nexmo insight

Add nexmo insight:* for finding insight into any number.

nexmo-node library update

• Update easynexmo library to 0.8.3
• Terminology change from msisdn to number