Not limit to 1000 the delta in KIconTheme::iconPath

[Albert Astals Cid]

In KIconTheme::iconPath there is a hardcoded 1000 that is making the unit test 
i recently added to kiconloader_unittest fail.

The attached patch fixes it.

I don't really really understand the code so a second opinion would be more 
than welcome.

BTW this is causing Okular to crash as we ask for a non null pixmap to 
KIconLoader and gives a null one and bad things happen after that.

Albert

Index: kicontheme.cpp
===================================================================
--- kicontheme.cpp      (revision 1102726)
+++ kicontheme.cpp      (working copy)
@@ -424,9 +424,9 @@
 {
     K3Icon icon;
     QString path;
-    int delta = -1000;  // current icon size delta of 'icon'
-    int dw = 1000;      // icon size delta of current directory
-    int dirSize = 1000; // directory size of 'icon'
+    int delta = -INT_MAX;  // current icon size delta of 'icon'
+    int dw = INT_MAX;      // icon size delta of current directory
+    int dirSize = INT_MAX; // directory size of 'icon'
     KIconThemeDir *dir;
 
     const int dirCount = d->mDirs.size();