added MongoId Metadata to row operations line

i added some metadata from the mongoid class to the action bar of every row
this information are available since PECL mongo >= 1.0.11
* http://de.php.net/manual/en/mongoid.getinc.php
* http://de.php.net/manual/en/mongoid.getpid.php
* http://de.php.net/manual/en/mongoid.gettimestamp.php

i added checks for every method so that older mongo extension should work but just do not show the data

i found this quite usefull, for example when there is no creation timestamp in a document

Preview:
![rockmongopatch](https://f.cloud.github.com/assets/85796/927673/93cf6810-ffa4-11e2-84e2-601044e0a621.PNG)