Finish Release-0.6.0
Re-added the dev-master branch alias.
Added the missing new classes to the README file.
Added the Scrutinizer badge to the README file.
Added a Features & Roadmap section to the README file.
Splitted some functions to reduce the complexity of the functions.
Added the Traversor class to handle array loop manipulation.
It is silly to have a Traversor that does nothing. Enforce a callable for itemCallback.
Invert the resultCallback parameters to allow only for result array when we don't need the original array.
Added the Traversor class to the features & roadmap section of the README file.
Renamed the Features & Roadmap section only to Roadmap in the README file.
Reordered the badges.
Splitted the NOT operation into two functions to handle values and array of values respectively.
Linked some Roadmap points to the Issues in the GitHub issue tracker.
Fixed typo.
Splitted the opAnd() function into two functions to handle values and array of values respectively.
Splitted the opOr() function into two functions to handle values and array of values respectively.
Added one important explanation to the valueAnd() and valueOr() docblocks.
Changed the word "fail" to "return" as it's more clear because the functions are not failing.
Removed the opOr() code that was forgotten.