updating comments in ClueImpl class
renaming SolutionStructure field as solutionStructure in camel case
tidying and commenting SemanticSolverImpl class
solutions added to KB subsequent to filtering and ranking
tidying and commenting SolutionImpl class
moving stripLanguageTag method into Solution interface
refactoring endpoint uri constant into Pop class
ERTask now refers to Pop class for URI and prefix constants
CQTask now refers to Pop class for URI and prefix constants
SolutionScorerImpl now refers to Pop class for URI and prefix constants
removing toProperCase method from SolutionScorerImpl
tidying and commenting SolutionScorerImpl class
increasing height of GUI frame
tidying and commenting SolvedClue class
commenting classes in test package
updating readme