Minor change to function parseScenario in RegexStoryParser

Problem Statement:
When the RegexStoryParser parses out a scenario, it attempts to remove the title from the step to get the scenario without title, but the function doesn't account for Scenario:\n before the title. I don't think this will affect anything, and I don't think anything was broken initally, I just noticed as debugging that it didn't strip out the actual title because of the Scenario keyword, newline, and space before it.

Actual Code:
RegexStoryParser line 151:

String scenarioWithoutTitle = removeStart(scenarioAsText, title);

Recommended Fix:
String scenarioWithoutTitle = removeStart(scenarioAsText, keywords.scenario() + "\n " + title);

Where "\n " can be replaced with whatever new line character is being used plus the space.