fix event name
getTotal from prev Collection if the collection is ConnectionPage.
add postCallback when LazyLoadCollection is not loaded yet
replace setPostLoadCallback with addPostLoadCallback
fix map and filter method with pre-loading collection on apply
Merge branch 'master' of git://github.com/musephp/musephp into 2.0

Conflicts:
	clio/src/Clio/Component/Util/Container/Collection/LazyLoadCollection.php
Merge branch '2.0' of git://github.com/musephp/musephp into 2.0