Push before merge
re #8962 Adding reading of file to string to CsvDataLoader
re #8934 Creating unit tests for json parser
re #8933 Testing LoginParser
re #8933 Testing DataParser, JisParser and WeatherParser
Re #8832 Label creation
Re #8838. Started refining commands accepting + modified GetData in DataDownloader.
Re #8691. Implemented downloaded data retrieving.
Re #8691. Working on retrieving data in time span from a directory.
Re #8691. Url config improvements + thread for commands accepting prepared.
Re #8691. Big refactor + config file added + working on providing methods for Parser.
Refs #8620, #8619. Refactor + testing.
Re #8620. Data files downloading implemented and plainly tested.