Merge pull request #2220 from Cameri/3.0

3.0 Replaced array() ocurrences with [] in lib/Cake/Core
Remove Time::serverOffset()
Merge pull request #2227 from bcrowe/hotfix-killServerOffset

Remove Time::serverOffset()
Make missing shell class error more useful.
Merge pull request #2228 from Cameri/3.0

3.0 Replaced array() with [] in lib/Cake/Cache/Engine
Replaced array() with [] in:
lib/Cake/Cache
lib/Cake/Config
lib/Cake/Console
lib/Cake/Console/Command
lib/Cake/Console/Command/Task
lib/Cake/Console/Templates