DI: better error message
Latte: throw exception when {$var} is in quotes in JavaScript or CSS
Latte: $shortNoEscape triggers E_USER_DEPRECATED instead of exception
Latte: $shortNoEscape is FALSE, {!...} triggers E_USER_DEPRECATED (BC break)
Session: disabled ini_set throws exception only when current <> desired value
Latte: improved error messages
Http\Response: shows a warning of possible buffer overflow when calling header()
Http\Response: disabled warning of possible buffer overflow when chunk_size = 0
Diagnostics: added OutputDebugger