Added VSync and CountdownTimer libraries.
Added SvgExe tool.
Removed old OpenCV library.
Merge branch 'master' of https://github.com/processing/processing-web

# By REAS (4) and Scott Murray (1)
# Via REAS
* 'master' of https://github.com/processing/processing-web:
  Modification to generate Reference Index
  Modification to generate Reference Index
  New generation script for People, Overview, Foundation
  Fixed footer link to People page
  Remove About from build