Minor updates to specs

Merge pull request #20 from IkoroVictor/travis-test-fix

- Fix Travis CI tests and updated dependencies

Second beta release

Changes

• Removed token generation i.e getToken method PaystackTransactions
• Removed Customer charge via token feature
• Removed tokenmanager.rb and crypto.rb
• Updated Readme.md

First beta release

v0.1.3-beta

readme edit