Updated copyright
Updated readme with improved documentation
Merge pull request #4 from ionux/master

Improved documentation & updated copyright information
Added plugin header, and refactored to look more like other libs
Refactored InvoiceParams class with properties. Changed KeyValuePair to Dictionary and other minor changes.
refactoring
Merge branch 'master' of github.com:unChaz/bitpay-csharp-api
fixed tests
merge with upstream
Merge pull request #5 from unChaz/master

added plugin version header and refactoring usage