Bump protocol version 5

Author: mattrobenolt

lib/utils.js

@@ -12,7 +12,7 @@ var protocolMap = {
 };
 
 module.exports.getAuthHeader = function getAuthHeader(timestamp, api_key, api_secret) {
-    var header = ['Sentry sentry_version=4'];
+    var header = ['Sentry sentry_version=5'];
     header.push('sentry_timestamp='+timestamp);
     header.push('sentry_client=raven-node/'+raven.version);
     header.push('sentry_key='+api_key);

test/raven.utils.js

@@ -93,7 +93,7 @@ describe('raven.utils', function() {
       var timestamp = 12345,
         api_key = 'abc',
         api_secret = 'xyz';
-      var expected = 'Sentry sentry_version=4, sentry_timestamp=12345, sentry_client=raven-node/'+raven.version+', sentry_key=abc, sentry_secret=xyz';
+      var expected = 'Sentry sentry_version=5, sentry_timestamp=12345, sentry_client=raven-node/'+raven.version+', sentry_key=abc, sentry_secret=xyz';
       raven.utils.getAuthHeader(timestamp, api_key, api_secret).should.equal(expected);
     });
   });