New commands and stylistic updates

• Title data footnotes will no longer mention '(speaker)' unless the author's email is also specified
• Added spacing around the em dash between the course code and title at the head of the document
• Improved styling for the explicit line break character
• Improved caption style
• New command The new command \\ provided by this class adds a new paragraph with a line break and without an indent. Use this to mark the start of a new paragraph rather than the end of the previous one.
• New command The \nl command provided by this class adds a new paragraph without indent or a line break. Use this same as the previous command but with a space after the command itself.
• New command The \runin{} command provided by this class adds small caps. This can be done manually but is a handy approach that is especially useful to start new sections/chapters/parts of a document.