Some preparation work for new platform support.

- Added a "PSP" compile-time define to clean up some compile time checks (replaced !WIN32 && !LINUX && !IOS with PSP) 
-- Wil, I am aware that this is redundant with the PSPENV variable you introduced recently, I think we can clean that up easily
-- This looks like lots of changes, but most of the time I just moved some blocks here and there
-- tested on VC 2010, PSP, and a bit of NDK
-- I might have broken maemo, iOS, or Linux compilation, can you guys check?
- Fixed some warnings reported by NDK
- NDK still does not compile because recent boost additions (mutex, etc...) are apparently not supported

JGE/include/JFileSystem.h

@@ -19,9 +19,7 @@
 #include <map>
 #include <string>
 
-#if defined (WIN32) || defined (LINUX) || defined(IOS)
-
-#else
+#if defined (PSP)
 	#include <pspiofilemgr.h>
 	#include <pspiofilemgr_fcntl.h>
 #endif
@@ -130,10 +128,10 @@ private:
 	char *mPassword;
 	bool mZipAvailable;
   	void preloadZip(const string& filename);
-#if defined (WIN32) || defined (LINUX) || defined(IOS)
-	FILE *mFile;
-#else
+#if defined (PSP)
 	SceUID mFile;
+#else
+	FILE *mFile;
 #endif
 	unzFile mZipFile;
 	int mFileSize;