Add test-unit dependency
Add unit tests for ConfigurationProvider
Refactor BrowserFactory class
Extract BrowserConfigurationReader from ConfigurationProvider
Extract GlobalConfigurationReader
Extract ApplicationConfigurationReader
Extract LoggingConfigurationReader
Convert logging levels to upcase and get rid of one instance variable
Refactor ApplicationConfigurationReader - to be continued
Refactor ApplicationConfigurationReader + remove redundant instance variable from ConfigurationProvider
Refactor GlobalConfigurationReader to match ApplicationConfigurationReader
Extract reusable constructs to ConfigurationReader
First part of refactoring in BrowserConfigurationReader
Second part of refactoring in BrowserConfigurationReader
Convert classes into modules
Merge logging_configuration_reader.rb into global_configuration_reader.rb
Refactor unit tests
Merge branch 'unit-testing'