Updated MarkdownMinutes class whitespaces

Updated whitespaces so that they are uniform throughout the file.
Updated generateSidebar function

Added $stopHeader.  Fixed officerHeaders.  Cleaned up logic inside for
loop.  Changed logic to stop seeking officers.  Updated regex for
matches.  Added a check to matches before pushing to array.
Merge pull request #1 from vibrantdavee/master

Patched sidebar for minutes