[geary] Fix error loading SMTP and IMAP host names introduced by a59a399.

[Michael Gratton <mjog src gnome org>]

commit 8f7ff57c82fcf30b2ca11bbbcc1bacb50e86b0e2
Author: Michael James Gratton <mike vee net>
Date:   Mon Jul 25 13:02:46 2016 +1000

    Fix error loading SMTP and IMAP host names introduced by a59a399.

 src/engine/api/geary-account-information.vala |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/src/engine/api/geary-account-information.vala b/src/engine/api/geary-account-information.vala
index ffb876d..173eed0 100644
--- a/src/engine/api/geary-account-information.vala
+++ b/src/engine/api/geary-account-information.vala
@@ -274,7 +274,7 @@ public class Geary.AccountInformation : BaseObject {
 
         if (service_provider == ServiceProvider.OTHER) {
             this.default_imap_server_host = get_string_value(
-                key_file, GROUP, this.default_imap_server_host);
+                key_file, GROUP, IMAP_HOST, this.default_imap_server_host);
             this.default_imap_server_port = get_uint16_value(
                 key_file, GROUP, IMAP_PORT, this.default_imap_server_port);
             this.default_imap_server_ssl = get_bool_value(
@@ -283,7 +283,7 @@ public class Geary.AccountInformation : BaseObject {
                 key_file, GROUP, IMAP_STARTTLS, this.default_imap_server_starttls);
 
             this.default_smtp_server_host = get_string_value(
-                key_file, GROUP, this.default_smtp_server_host);
+                key_file, GROUP, SMTP_HOST, this.default_smtp_server_host);
             this.default_smtp_server_port = get_uint16_value(
                 key_file, GROUP, SMTP_PORT, this.default_smtp_server_port);
             this.default_smtp_server_ssl = get_bool_value(