SPACE EDITOR:
 * some css hacks: colors, cursors and gummy bears
 * add point in existing segment
 * remove points with shift+click
 * first and last point is now the same on the data model and when moving points around
 * a LOT of refactoring in editor.js: kept everything in same file because:
   - it is encapsulated in an 'Editor' object and respects most best practices I discovered on google after 1 minute search
   - as it is, it's easy to make a jQuery plugin from here (if we want to.. we want to?)
   - intellij really really helps when using this code style