Added .gitignore
Added slide transition

Also moved some functions around and made some new ones
postAnimation()
 - Moved all the post animation stuff to a separate function so it can be called after an animation is complete

fade()
 - Moved the fade animation to a separate function for code cleanliness
slide()
 - New transition!
 - Animates to top, bottom, left, right
Updated README.md to include transition information
Other misc formatting stuff
 - Added code syntax highlighting for code blocks
 - Made the name 'jQueryFullscreenSlider' consistent throughout the docs