Upgraded simpletest to v. 1.1.0

Main motivation was that old version failed a lot on strict error level (static calls in object context etc.).

Commented out usages of $this->swallowErrors(); as it's not defined in simpletest anymore.

I get now some errors when running tests:
```
Fail: D:/srokap/git/Srokap/Elgg/engine/tests/ElggCoreObjectTest.php -> ElggCoreObjectTest -> testElggObjectConstructorByGUID -> Identical expectation [Object: of ElggObjectTest] fails with [Object: of ElggObjectTest] with member [attributes] as key list [time_created, guid, type, subtype, owner_guid, container_guid, site_guid, access_id, time_updated, last_action, enabled, tables_split, tables_loaded, title, description] does not match key list [guid, tables_split, tables_loaded, type, subtype, owner_guid, site_guid, container_guid, access_id, time_created, time_updated, last_action, enabled, title, description] at [D:\srokap\git\Srokap\Elgg\engine\tests\ElggCoreObjectTest.php line 102]
Fail: D:/srokap/git/Srokap/Elgg/engine/tests/ElggCoreObjectTest.php -> ElggCoreObjectTest -> testElggObjectContainer -> Identical expectation [Object: of ElggGroup] fails with [Object: of ElggGroup] with member [attributes] as key list [time_created, guid, type, subtype, owner_guid, container_guid, site_guid, access_id, time_updated, last_action, enabled, tables_split, tables_loaded, name, description] does not match key list [guid, type, subtype, owner_guid, site_guid, container_guid, access_id, time_created, time_updated, last_action, enabled, tables_split, tables_loaded, name, description] at [D:\srokap\git\Srokap\Elgg\engine\tests\ElggCoreObjectTest.php line 154]
Fail: D:/srokap/git/Srokap/Elgg/engine/tests/ElggCoreUserTest.php -> ElggCoreUserTest -> testElggUserConstructorByGuid -> Identical expectation [Object: of ElggUser] fails with [Object: of ElggUser] with member [attributes] as key list [guid, tables_split, tables_loaded, type, subtype, owner_guid, site_guid, container_guid, access_id, time_created, time_updated, last_action, enabled, name, username, password, salt, email, language, code, banned, admin, prev_last_action, last_login, prev_last_login] does not match key list [guid, type, subtype, owner_guid, site_guid, container_guid, access_id, time_created, time_updated, last_action, enabled, tables_split, tables_loaded, name, username, password, salt, email, language, code, banned, admin, prev_last_action, last_login, prev_last_login] at [D:\srokap\git\Srokap\Elgg\engine\tests\ElggCoreUserTest.php line 97]
Fail: D:/srokap/git/Srokap/Elgg/engine/tests/ElggCoreUserTest.php -> ElggCoreUserTest -> testElggUserConstructorByDbRow -> Identical expectation [Object: of ElggUser] fails with [Object: of ElggUser] with member [attributes] as key list [guid, name, username, password, salt, email, language, code, banned, admin, last_action, prev_last_action, last_login, prev_last_login, tables_split, tables_loaded, type, subtype, owner_guid, site_guid, container_guid, access_id, time_created, time_updated, enabled] does not match key list [guid, type, subtype, owner_guid, site_guid, container_guid, access_id, time_created, time_updated, last_action, enabled, tables_split, tables_loaded, name, username, password, salt, email, language, code, banned, admin, prev_last_action, last_login, prev_last_login] at [D:\srokap\git\Srokap\Elgg\engine\tests\ElggCoreUserTest.php line 111]
Fail: D:/srokap/git/Srokap/Elgg/engine/tests/ElggCoreUserTest.php -> ElggCoreUserTest -> testElggUserConstructorByUsername -> Identical expectation [Object: of ElggUser] fails with [Object: of ElggUser] with member [attributes] as key list [time_created, guid, type, subtype, owner_guid, container_guid, site_guid, access_id, time_updated, last_action, enabled, tables_split, tables_loaded, name, username, password, salt, email, language, code, banned, admin, prev_last_action, last_login, prev_last_login] does not match key list [guid, type, subtype, owner_guid, site_guid, container_guid, access_id, time_created, time_updated, last_action, enabled, tables_split, tables_loaded, name, username, password, salt, email, language, code, banned, admin, prev_last_action, last_login, prev_last_login] at [D:\srokap\git\Srokap\Elgg\engine\tests\ElggCoreUserTest.php line 117]
Fail: D:\srokap\git\Srokap\Elgg\mod\web_services/tests/ElggCoreWebServicesApiTest.php -> ElggCoreWebServicesApiTest -> testApiAuthKeyBadKey -> Identical expectation [String: Missing API key] fails with [String: Bad API key] at character 0 with [Missing API key] and [Bad API key] at [D:\srokap\git\Srokap\Elgg\mod\web_services\tests\ElggCoreWebServicesApiTest.php line 309]
```