v4.0.0

Breaking changes:

• Removed version constraint in favor of generic constraint. - #170
  There is still support for version constraint:

  // before
  findMyWay.on('GET', '/', { version: '1.0.0' }, (req, res) => {
    res.end('ok')
  })
  
  // now
  findMyWay.on('GET', '/', { constraints: { version: '1.0.0' } }, (req, res) => {
    res.end('ok')
  })

Features:

• Added support for generic constraints, ships by default version and host - #170
• Add double colon handling (support for paths with colons) - #176