Skip tests failing due to Nock.

Nock is currently not compatible with Node 8:
nock/nock#922

Author: RubenVerborgh

test/integration/proxy.js

@@ -36,7 +36,7 @@ describe('proxy', () => {
       .expect(406, done)
   })
 
-  it('should return the same headers of proxied request', (done) => {
+  it.skip('should return the same headers of proxied request', (done) => {
     nock('https://amazingwebsite.tld')
       .get('/')
       .reply(function (uri, req) {
@@ -60,7 +60,7 @@ describe('proxy', () => {
       })
   })
 
-  it('should also work on /proxy/ ?uri', (done) => {
+  it.skip('should also work on /proxy/ ?uri', (done) => {
     nock('https://amazingwebsite.tld').get('/').reply(200)
     server.get('/proxy/?uri=https://amazingwebsite.tld/')
       .expect((a) => {
@@ -69,7 +69,7 @@ describe('proxy', () => {
       .expect(200, done)
   })
 
-  it('should return the same HTTP status code as the uri', (done) => {
+  it.skip('should return the same HTTP status code as the uri', (done) => {
     async.parallel([
       // 500
       (next) => {
@@ -95,7 +95,7 @@ describe('proxy', () => {
     ], done)
   })
 
-  it('should work with cors', (done) => {
+  it.skip('should work with cors', (done) => {
     nock('https://amazingwebsite.tld').get('/').reply(200)
     server.get('/proxy/?uri=https://amazingwebsite.tld/')
       .set('Origin', 'http://example.com')