Prepending instead of appending default styles to <head>
Prepending instead of appending default styles to <head>

The problem with appending the default styles to <head> was that they
were overwriting the styles I created in my own `slides.css` file, which
I wanted in order to create a general design for my slideshows.

saadatqadri/remark,noname007/remark,ghoshbinayak/nodeppt,ghoshbinayak/nodeppt,emi80/remark,tripu/remark,jonathanpberger/dark-design,shigemk2/remark,jonathanpberger/dark-design,tilast/service-objects,imouren/remark,doctoryes/remark,jeromecc/rmll2015madagascar,FabioBeneditto/remark,bytezen/remark,jeromecc/rmll2015madagascar,0111001101111010/remark,jonathanpberger/points-estimation-velocity,smikes/remark,jonathanpberger/design-testing,gnab/remark,kahultman/remark,gnab/remark,noname007/remark,bytezen/remark,GerHobbelt/remark,programath/remark,linkabi9/sdjs20150309directives,lucamaraschi/pressenter,GerHobbelt/remark,tkraak/remark,kwangkim/remark,shigemk2/remark,xiaoking/remark,tkraak/remark,lucamaraschi/pressenter,tilast/service-objects,doctoryes/remark,jonathanpberger/mce-test,bkeepers/remark,bkeepers/remark,JPry/remark,jonathanpberger/design-testing-aed,programath/remark,imouren/remark,tripu/remark,jonathanpberger/points-estimation-velocity,xiaoking/remark,linkabi9/sdjs20150309directives,kwangkim/remark,saadatqadri/remark,emi80/remark,jonathanpberger/design-testing-aed,JPry/remark,jonathanpberger/design-testing-pairing,reyhansofian/remark,jonathanpberger/design-testing-pairing,FabioBeneditto/remark,mariojp/remark,smikes/remark,mariojp/remark,reyhansofian/remark,kahultman/remark