v1.2.0

Reading via git binary

• added method GitDirectory::executeGitCommand()
• added boolean parameter $useBinary into constructor of the class GetHeadCommandHandler
• added boolean parameter $useBinary into constructor of the class GetLatestTagCommandHandler
• added boolean paramter $useBinary into the method LocalGitRepository::createDefault()
• added boolean paramter $useBinary into the method Export\Config::createDefault()
• Nette DI extensions reigsters command handlers with parameter useBinary = true by default
• fixed tests