1. Renamed namespace from MarkdownToOpenXML.dll to MarkdownToOpenXML
2. Renamed namespace from Test to MarkdownToOpenXMLDemo
3. Introduced MDRegexPatterns to deal with patterns
4. Removed pattern information from PatternMatcher.
5. Add code for rendering Horizontal Rule element rendering.
6. Updated demo.txt to include multiple HR elements in MD syntax
7. Added UltimateDemo.md file to do the fiunal testing.
8. Added MarkdownToOpenXMLTest to include unit testing
10. Changed rest of the classes code to accomdate MDRegexPatterns
1. Adding unstaged files for final commit