Update to current Pelias contact email address

Per https://github.com/pelias/pelias/tree/master/announcements/2018-01-02-pelias-update
replace all @mapzen.com email addresses with the current Pelias contact email address.

grep used to confirm no '@mapzen.com' remain.

sanitizer/_deprecate_quattroshapes.js

@@ -26,7 +26,7 @@ function _sanitize( raw, clean, opts ) {
        'replaced by Who\'s on First, an actively maintained data project based on Quattroshapes' +
        'Your existing queries WILL CONTINUE TO WORK for the foreseeable future, but results will ' +
        'be coming from Who\'s on First and `sources=quattroshapes` will be interpreted as ' +
-       '`sources=whosonfirst`. If you have any questions, please email search@mapzen.com.');
+       '`sources=whosonfirst`. If you have any questions, please email pelias.team@gmail.com.');
 
        // user requested 'quattroshapes', we will give them 'whosonfirst' instead.
        sources = _.without(sources, 'quattroshapes', 'qs');

test/ciao/reverse/sources_deprecation_warning.coffee

@@ -27,7 +27,7 @@ should.not.exist json.geocoding.errors
 
 #? expected warnings
 should.exist json.geocoding.warnings
-json.geocoding.warnings.should.eql ['You are using Quattroshapes as a data source in this query. Quattroshapes has been disabled as a data source for Mapzen Search, and has beenreplaced by Who\'s on First, an actively maintained data project based on QuattroshapesYour existing queries WILL CONTINUE TO WORK for the foreseeable future, but results will be coming from Who\'s on First and `sources=quattroshapes` will be interpreted as `sources=whosonfirst`. If you have any questions, please email search@mapzen.com.' ]
+json.geocoding.warnings.should.eql ['You are using Quattroshapes as a data source in this query. Quattroshapes has been disabled as a data source for Mapzen Search, and has beenreplaced by Who\'s on First, an actively maintained data project based on QuattroshapesYour existing queries WILL CONTINUE TO WORK for the foreseeable future, but results will be coming from Who\'s on First and `sources=quattroshapes` will be interpreted as `sources=whosonfirst`. If you have any questions, please email pelias.team@gmail.com.' ]
 
 #? inputs
 json.geocoding.query['size'].should.eql 10

test/ciao/search/sources_deprecation_warning.coffee

@@ -27,7 +27,7 @@ should.not.exist json.geocoding.errors
 
 #? expected warnings
 should.exist json.geocoding.warnings
-json.geocoding.warnings.should.eql ['You are using Quattroshapes as a data source in this query. Quattroshapes has been disabled as a data source for Mapzen Search, and has beenreplaced by Who\'s on First, an actively maintained data project based on QuattroshapesYour existing queries WILL CONTINUE TO WORK for the foreseeable future, but results will be coming from Who\'s on First and `sources=quattroshapes` will be interpreted as `sources=whosonfirst`. If you have any questions, please email search@mapzen.com.' ]
+json.geocoding.warnings.should.eql ['You are using Quattroshapes as a data source in this query. Quattroshapes has been disabled as a data source for Mapzen Search, and has beenreplaced by Who\'s on First, an actively maintained data project based on QuattroshapesYour existing queries WILL CONTINUE TO WORK for the foreseeable future, but results will be coming from Who\'s on First and `sources=quattroshapes` will be interpreted as `sources=whosonfirst`. If you have any questions, please email pelias.team@gmail.com.' ]
 
 #? inputs
 json.geocoding.query['size'].should.eql 10

test/unit/sanitizer/_deprecate_quattroshapes.js

@@ -15,7 +15,7 @@ module.exports.tests.warning_message_1 = function(test, common) {
        'replaced by Who\'s on First, an actively maintained data project based on Quattroshapes' +
        'Your existing queries WILL CONTINUE TO WORK for the foreseeable future, but results will ' +
        'be coming from Who\'s on First and `sources=quattroshapes` will be interpreted as ' +
-       '`sources=whosonfirst`. If you have any questions, please email search@mapzen.com.']
+       '`sources=whosonfirst`. If you have any questions, please email pelias.team@gmail.com.']
     }, 'warning emitted');
 
     t.end();
@@ -35,7 +35,7 @@ module.exports.tests.warning_message_2 = function(test, common) {
        'replaced by Who\'s on First, an actively maintained data project based on Quattroshapes' +
        'Your existing queries WILL CONTINUE TO WORK for the foreseeable future, but results will ' +
        'be coming from Who\'s on First and `sources=quattroshapes` will be interpreted as ' +
-       '`sources=whosonfirst`. If you have any questions, please email search@mapzen.com.']
+       '`sources=whosonfirst`. If you have any questions, please email pelias.team@gmail.com.']
     }, 'warning emitted');
 
     t.end();