Tweaked and Added new Functionality

Improved version of previous commit.

Change Log:

- Ensured all previous pages were compiling correctly with markdown.
- Added new directories to contain Documentation, Legacy Versions and Updates
- Added Blog Functionality i.e. now able to create posts that can be used to describe updates/news regarding Apel
- Added YML. Files for Site Navigation and Release Versions
- Legacy Versions have been introduced.
- Status Markdown from the Repository has also been introduced to the main site.

Please feel free to investigate my changes before committing. I have been testing it constantly with my local Jekyll environment.

Josh