-	Added config.StrykerConfig, a Singleton class that loads a .properties file and offer the following
	*	A Configuration object with all properties defined in the .properties file
	*	A getPathSeparator() method to obtain the path/file separator for the current OS
	*	A getOutputDir() method that returns the value of propertie path.output replacing
		the only argument with getPathSeparator()
	*	A getCompilingSandbox() method that returns the value of propertie path.compilingSandbox
		replacing the first argument with getPathSeparator() and the second with a random string

-	Modified genericTest.properties
	*	Added several properties that where only defined with overriding properties
	*	Added property path.output, this defines where mutants will be stored
	*	Added property path.compilingSandbox, this defines the folder that will be used
		to create an independent compiling environment

-	Modified StrykerRepairSearchProblem
	*	Commented several overriding properties that are now defined in genericTest.properties