Specify correct return type for `Pdo\Connection::getLastGeneratedValue`

See http://php.net/manual/en/pdo.lastinsertid.php for reference that it returns `sting` instead of `int`.

TODO: change type of `$lastInsertValue` property and `getLastInsertValue` method in `Zend/Db/TableGateway/AbstractTableGateway.php` accordingly.
Update Predicate.php

I have added a notLike predicate in file so you can use is on sql query
Bumping ProxyManager dependency to 0.5.x
Removing deprecated call to `ProxyManager\Configuration#setAutoGenerateProxies()`
Uniform functionality of `write_proxy_files` and `auto_generate_proxies` (since the latter is deprecated)
Moving up code setting the proxy namespace (used internally in the config object)
Importing test from zendframework/zf2#5198 by @blanchonvincent
Always enable proxy autoloader
Removing duplicate test case
Completely dropping `auto_generate_proxies` flag (deprecated)
Removing `auto_generate_proxies` flag from tests
Merge branch 'hotfix/5862'

Close #5862
Close #5688
Fixes #4948
Merge pull request #5858 from Ocramius/hotfix/proxy-auto-generation

Deprecate Proxy auto-generation. Close #5198
[#5865] Removed unneccessary use
Updated PhpArray to expand paths using __DIR__
Test Coverage on ConfigWrite for __DIR__.
Added comment for dirname replace.
Merge pull request #5880 from spiffyjr/feature/php-array-fix-dir

Updated PhpArray to expand paths using __DIR__
[#5880] CS fixes

- EOF ending
Merge branch 'feature/5880' into develop

Close #5880