Pager must support key pagination

[chanmix51]

See http://use-the-index-luke.com/fr/no-offset

[stood]

:+1:

[chanmix51]

In fact, what is called « key pagination » is more a « data scrolling » because it can not support proper search per page and it is very difficult to browse pages downward. Using a key instead limit offset is a very good idea for infinite data scrolls. There should be a blog article about how to achieve that instead of adding functions in Pomm imho.