Merge pull request #1 from rvbhute/master

Able to pull roster details successfully
Change indentation slash in any OS and tabs for spaces
Change indentation and missing Doxygen comment
Refactor the constructor and (IMPORTANT) change Roster class like other XMPPHP classes
Minor changes for indentation and spaces
Minor changes for indentation and spaces
Refactor for cleaning code and indentation
Refactor for cleaning code and indentation
Refactor for cleaning code and indentation
Refactor for cleaning code and indentation
Refactor for cleaning code and indentation
Refactor for cleaning code and indentation
Refactor for cleaning code and indentation
Refactor for cleaning code and indentation
Minor changes for indentation and spaces
Minor changes for indentation and spaces
Refactor for cleaning code and indentation
Refactor for cleaning code and indentation
Minor changes for indentation and spaces
Refactor for cleaning code and indentation