Fixed coding convention issues as given by the automatic

Fixed coding convention issues as given by the automatic
rule checker in a mail from the 3rd of march, 2011.

All issues fixed, except

- FMD/AliFMDParameters.cxx:832
	Rule RC19: In parameters of a method, objects that are passed
	by pointer or by reference and that are not modified should be
	declared const.  Violation: Parameter declaration UShort_t&
	det in method AliFMDParameters::Hardware2Detector can be
	declared as const type & param

+ This is a false negative - which is obvious from the code

- FMD/AliFMDReconstructor.cxx:332
	Rule RC19: In parameters of a method, objects that are passed
	by pointer or by reference and that are not modified should be
	declared const.  Violation: Parameter declaration AliRawReader
	reader in method AliFMDReconstructor::Digitize can be declared
	as const type param

+ Again, this is a false negative, since the AliRawReader object _is_
  modified - the state is changed

- FMD/AliFMDHitDigitizer.cxx:213
	Rule RC19: In parameters of a method, objects that are passed
	by pointer or by reference and that are not modified should be
	declared const.  Violation: Parameter declaration AliFMD fmd
	in method AliFMDHitDigitizer::AliFMDHitDigitizer can be
	declared as const type param

+ Again, false negative.  The member fFMD is assigned to the passed
  parameter and this is indeed modified several times throughout the
  life time of the AliFMDHitDigitizer object.

- FMD/AliFMD3.cxx:123
	Rule RC19: In parameters of a method, objects that are passed
	by pointer or by reference and that are not modified should be
	declared const.  Violation: Parameter declaration Option_t opt
	in method AliFMD3::ConeR can be declared as const type param

+ False negative.  Strange actually, since typedef const char Option_t

- FMD/AliFMDBaseDigitizer.cxx:605
	Rule RC19: In parameters of a method, objects that are passed
	by pointer or by reference and that are not modified should be
	declared const.  Violation: Parameter declaration AliLoader
	loader in method AliFMDBaseDigitizer::StoreDigits can be
	declared as const type param

+ Again, false negative.

- FMD/AliFMDSpectraDisplay.cxx:237
	Rule RC19: In parameters of a method, objects that are passed
	by pointer or by reference and that are not modified should be
	declared const.  Violation: Parameter declaration
	TGListTreeItem entry in method
	AliFMDSpectraDisplay::AliFMDSpectraDisplayTop::HandleEntry can
	be declared as const type param

+ This cannot be changed, since the call back from ROOT does not allow
  that.