Prepare 1.5.11

Prepare 1.5.10

Prepare 1.5.9

Prepare 1.5.8

Submodules update:

- doctrine to 1.3.4
- swiftmailer to 5.4.3

Merge pull request FriendsOfSymfony1#116 from LExpress/doctrine-proje…

…ct-upgrade

Update UPGRADE file about configureDoctrine

Release 1.5.6

Revert wrong method name

https://github.com/LExpress/symfony1/pull/97/files#r34951248

Prepare 1.5.4

Prepare 1.5.3

Prepare v1.5.2