Upgrade browserify and other dev dependencies

[yuryleb]

Upgrade browserify to get fixed ecstatic to avoid TypeError('The header content contains invalid characters') for browsers with non-latin headers connected to local frontend:

_http_outgoing.js:360
    throw new TypeError('The header content contains invalid characters');
    ^

TypeError: The header content contains invalid characters
    at ServerResponse.OutgoingMessage.setHeader (_http_outgoing.js:360:11)
    at serve (C:\Install\Garmin\GitHub\osrm-frontend\node_modules\ecstatic\lib\ecstatic.js:204:11)
    at C:\Install\Garmin\GitHub\osrm-frontend\node_modules\ecstatic\lib\ecstatic.js:134:11
    at FSReqWrap.oncomplete (fs.js:123:15)

Original issues:

• The header content contains invalid characters？ http-party/http-server#244
• _http_outgoing.js:351 throw new TypeError('The header content contains invalid characters'); ^ angular/angular-phonecat#303

[yuryleb]

This also updates deprecated [email protected] to 3.0.3 (#205)

[TheMarex]

Looks good to me!