ulyngs/oxforddown: Make the Knit button great again! :D

This is a major release that simplifies how you build your thesis, which should make it easier to use across operating systems. It also adds functionality and fixes numerous bugs. Major changes To build the entire thesis, you now simply knit the index.Rmd file. You control the output format by commenting in or out the format you want in the YAML front matter. The build function used by the knit button can easily be customised by editing the corresponding R script. This removes the use of make, which simplifies the build process and streamlines it across operating systems (make can be a pain on Windows) New functionality & documentation You can now hide or show line numbers by setting includeline-num to true or false in index.Rmd (thanks Ilse Pit! You can now switch between the biblatex and natbib LaTeX packages for handling references, by setting use-biblatex to true or false in index.Rmd Sample content now shows an example of how to include another paper in your thesis as an R Markdown child document You can now easily customise or replace the title page, so that it is easy to tweak oxforddown for use with another university's front matter - a section on how to do this has been added to the documentation Minor changes and bug fixes the yaml options header_includes and in_header now works correctly (#17) the fix also means that kableExtra now correctly includes its latex dependencies automatically when the library is loaded, so many of its dependencies have been removed from the oxforddown latex templates (#14) fixed bug in hiding or showing hyperlink borders from index.Rmd (#18) oxforddown now uses the MIT licens