Remove old version PHP code 

We are starting from 5.3 now
Remove old version php check
Remove old version php check
Remove php old version check
Remove unused variable
Fix remove seeded variable
Fix tep_session register
Add superglobal to whos_online
Merge pull request #174 from acidvertigo/patch-4

Remove old version PHP code conditional check
Merge pull request #178 from acidvertigo/patch-46

Add superglobal to whos_online