- Fixed all known problems with temporary files and directoroes

- Command line switches work again (/NCRC and /S)
- GetTempFileName now takes another argument as base directory (default is $TEMP)
- Message boxes work from .onGUIEnd
- Some more optimizations


git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@2739 212acab6-be3b-0410-9dea-997c60f758d6

Source/exehead/util.h

@@ -14,6 +14,7 @@ char * NSISCALL mystrcpy(char *out, const char *in);
 int NSISCALL mystrlen(const char *in);
 char * NSISCALL mystrstr(char *a, char *b);
 WIN32_FIND_DATA * NSISCALL file_exists(char *buf);
+char * NSISCALL my_GetTempFileName(char *buf, const char *dir);
 
 //BOOL NSISCALL my_SetWindowText(HWND hWnd, const char *val);
 #define my_SetWindowText SetWindowText