watchr complains in console on older nodejs versions

[Billy Moon]

Temporary fix by fallback to fs.watch in lib/helpers/livereload.coffee

...

# watchr = require 'watchr'

...

require('fs').watch path.resolve(app.program.args[0] or process.cwd()), (e, filename)->
  m = filename.match /\.([^.]+)$/
  extension = m?[1]
  if !!extension and (app.handlers[extension] or app.mimes[extension])
    served_filename = filename.replace RegExp("#{m[1]}$"), app.handlers[extension]?.chain or extension
    request "http://127.0.0.1:#{app.program.port}/changed?files="+served_filename, (error, response, body)->
      console.log 'livereloaded due to change: ' + filename

# watchr.watch
#   path: path.resolve app.program.args[0] or process.cwd()
#   catchupDelay: 200
#   listeners:
#     change: (type, filename)-> # additional arguments: currentStat and originalStat
#       m = filename.match /\.([^.]+)$/
#       extension = m?[1]
#       if !!extension and (app.handlers[extension] or app.mimes[extension])
#         served_filename = filename.replace RegExp("#{m[1]}$"), app.handlers[extension]?.chain or extension
#         request "http://127.0.0.1:#{app.program.port}/changed?files="+served_filename, (error, response, body)->
#           console.log 'livereloaded due to change: ' + filename