If something has been alloc'd through the 'alloc' message, it must be also
released esplicitly. Moreover , if it has been alloc'd there is no need to retain it ...
since no-one called autorelease on that instance yet.
- merged some local changes (avoid using deprecated APIs)
- the xcode project has been civilized
(stuff was messed up a bit by the flowmixer branch and new files were in
weird locations)
NOTE:
this is still a work in progress and all functionalities still need
testing. Something could have been messed up by mergin my local changes
with flowmixer branch