Merge branch 'release/0.3.0' into develop
#3 - Added submodule YUnit from https://github.com/Uberi/Yunit.git
#3 - Initial Unittests
#3 - Fixes to make initial (Version-) Unittest run without any error
#3 - Removed old Unittest-Files
Merge branch 'feature/#3' into develop
[V] cGist 0.4.0 - Make Unittests work again

[+] Changed to use YUnit (https://github.com/Uberi/Yunit) for UnitTesting
[-] Removed old UnitTest-Files
[+] Initial UnitTest (Version-Test)
Fixes #3
[+] Method __HTTPdelete() - Initial - delete-Request
[-] Method new() - Removed ID as parameter from constuctor
[*] Methods get() & getJSON() - Introducing ID as parameter
[*] Renamed internal method __get_json_obj() to __HTTPget_obj()
[*] Renamed internal method __get_json() to __HTTPget()
[*] Method __HTTPget() - considering authorization
[*] Enhanced example