basic impress.js presentation

Basically just copied the code from the impress.js demo presentation,
more to come soon
Welcome slide
Flipping notecard

gonna try out some other notecard libraries and see how they work, but
for now this one seems to work fine
Flipping note card

it looks better now, after we changed the flip library
rounded border on notecard

you can also press “shift” to flip the card
Merge pull request #1 from adhivd/master

Puling in from master