correcting printf formatstrings

CID:27913
CID:27914
CID:27915
CID:27916
CID:27917
CID:27918
CID:27919
CID:27920
added string argument to printf("%s")

CID:27922
fixed typo (trailing semicolon)
findFile for RTE
using RTE's findFile
include RTE/RTE.h into installed headers
simplified/fixed frei0r loading mechanism
trying to fix a ressource leak in pix_freeframe

LATER: switch to GemDylib()

CID:27923
avoid unused members

pSource/pOutput are only used as function-local variables,
so there's no need to keep them as instance members

CID:27954
document use of switch with fall-through

CID:27882
CID:27883
CID:27884
CID:27885
removed unused member

CID:27994
removed unused members, initialize the rest

CID:27954
initialize members

CID:27982
initialize members

CID:27956
initialized member variables (and removed unused ones)

CID:27999
initialized member variables (and removed unused ones)

CID:27955
initialized member variables (and removed unused ones)

CID:27951
document fall-through in switch/case

CID:27878
CID:27879
CID:27880
CID:27881
CID:27886
CID:27888
CID:27889
added missing return statement

CID:27892
indentation

CID:27894