Fixed legacy code

Fixes #492
Merge branch 'master' of https://github.com/venomous0x/WhatsAPI
Fixed event binding

Also fixes #492
Repaired onProfilePictureChanged event, added onProfilePictureDeleted
Update whatsprot.class.php
Update whatsprot.class.php
Merge pull request #493 from Bashin/master

Repaired onProfilePictureChanged event, added onProfilePictureDeleted
Updated client details to 2.11.113
Merge branch 'master' of https://github.com/venomous0x/WhatsAPI
Typos fixed as well as incorrectly commented function name
Merge pull request #507 from ArtaexJeffrey/patch-1

Typos fixed as well as incorrectly commented function name
added full path on the fopen(countries.csv) line, it doesn't change current behavior and it fix the problem if WhatsAPI is being used from other project/path
Merge pull request #511 from conejoninja/master

added full path on the fopen(countries.csv) line,
Update EVENTS.md

onGetRequestLastSeen return an array with 4 elements, not with 3!
Merge pull request #524 from KSas/patch-2

Update EVENTS.md
Repaired onProfilePictureChanged event, added onProfilePictureDeleted
Update whatsprot.class.php
Update whatsprot.class.php
Split message event into private and group

Fixes #526
Merge branch 'master' of https://github.com/venomous0x/WhatsAPI