Initiated middleman.
Moved js from site and removed styles folder and old js folder.
Added readme and tiny bit of tidying up in gravity.js
Removed title text from gravity.html
Removed a lot, but not all, jQuery dependency to the point that demo starts running. Also changed the name of the ID element from script demo to gravity demo in preparation for adding second demo to index page.
Moved vector functions into their own library for gravity.js.
Moved animation loop into own file.
Moved particle and system objects into own files.
Removed commented out code.
Removed function to get click location (never worked).
Moved line that makes particle object a child of system object to particle object file.
Undone previous commit as it broke particle-wall collision detection.
Moved functions into own library.