Mark session.save_path permissions check as N/A if running on Windows
Output N/A status as warnings
Merge pull request #79 from jkrehm/html-warn

Output N/A status as warnings in HTML
Update Windows session.save_path message to include explicit instructions for the user
Merge pull request #78 from jkrehm/windows-permissions

Mark session.save_path permissions check as N/A if running on Windows