Update to latest version of org.json

Fixes:

• Missing functionality in later versions of org.json library

Bugfix when fetching files with HttpRequest

Fixes:

• Replaces URIBuilder with URL().toURI() since the previous had issues when getting files.

Bugfix with authentication headers

Fixes:

• Authentication heders added as parameter, is now correctly added in headers.

Improved HttpClient and MailSubscriptionObject

• Add support for mail subject and body in MailSubscriptionObject
• Add setBasicAuth method that sets Authorization header in HttpClient

Eiffel-commons 0.0.15

What's new?

• HttpRequest is now mockable by defining new ways of
  initializing the class.
• Headers can now be set in request body(HttpRequest).
• URI can now be retrieved from HttpRequest.
• HttpMethod can now be set after initializing.

Eiffel-commons 0.0.14

What's new?

• Trimming of the URI in the HTTPRequest class. Before this change, setting a baseUrl ending with a "/" and setting an endpoint beginning with a "/" would result in "//" in the url. This change will trim the url so it doesn't matter if you add trailing slash on the baseurl or not, as well as the leading slash on the endpoint.

Add chaining to all setters in subscription object

0.0.13

Update version

Customable Subscription Authentication fields

authenticationType, userName and password is now set individually and supports custom athentication types.

Revert changes to resource loading

• Revert back the way we read files
• Add .travis file for travis tests.
• Update to README

Making constant class final

Making class of constants as final and path change for jenkinsxml (#19)

* making constant class final, minor change in jenkinsxml path and changing version