Fix #92: Add _more_accounts attribute and start parameter to paginate through SuggestAccount results

Original PR: #92
AccountInfo: https://gerrit-review.googlesource.com/Documentation/rest-api-accounts.html#account-info

Author: andygrunwald

accounts.go

@@ -24,6 +24,7 @@ type AccountInfo struct {
 		URL    string `json:"url,omitempty"`
 		Height int    `json:"height,omitempty"`
 	} `json:"avatars,omitempty"`
+	MoreAccounts bool `json:"_more_accounts,omitempty"`
 }
 
 // SSHKeyInfo entity contains information about an SSH key of a user.

changes.go

@@ -479,6 +479,9 @@ type QueryOptions struct {
 	// The n parameter can be used to limit the returned results.
 	// If the n query parameter is supplied and additional changes exist that match the query beyond the end, the last change object has a _more_changes: true JSON field set.
 	Limit int `url:"n,omitempty"`
+
+	// The S or start query parameter can be supplied to skip a number of changes from the list.
+	Start int `url:"start,omitempty"`
 }
 
 // QueryChangeOptions specifies the parameters to the ChangesService.QueryChanges.