index github api paging at 1, not 0

Author: Fred K. Schott

src/github.ts

@@ -189,7 +189,7 @@ export class GitHubConnection {
     const allRepos: GitHubRepoData[] = [];
     let pageRepos: GitHubRepoData[] = [];
     const pageSize = 50;
-    let page = 0;
+    let page = 1;
     let isOrg = true;
 
     do {

src/test/_util/mock-api.ts

@@ -35,7 +35,7 @@ export function setup() {
   nock('https://api.github.com')
       .persist()
       .get('/orgs/polymerelements/repos')
-      .query({page: 0, per_page: 50, access_token: testApiToken})
+      .query({page: 1, per_page: 50, access_token: testApiToken})
       .reply(
           200,
           [
@@ -63,6 +63,12 @@ export function setup() {
           ],
           {Status: '200 OK'});
 
+  nock('https://api.github.com')
+      .persist()
+      .get('/orgs/polymerelements/repos')
+      .query({page: 2, per_page: 50, access_token: testApiToken})
+      .reply(200, [], {Status: '200 OK'});
+
   nock('https://api.github.com')
       .persist()
       .get('/repos/PolymerElements/paper-appbar/git/refs/heads/ABCDEFGH')