increment minor revision number to make version "2.6.0"

indra/llcommon/llversionviewer.h

@@ -28,7 +28,7 @@
 #define LL_LLVERSIONVIEWER_H
 
 const S32 LL_VERSION_MAJOR = 2;
-const S32 LL_VERSION_MINOR = 5;
+const S32 LL_VERSION_MINOR = 6;
 const S32 LL_VERSION_PATCH = 0;
 const S32 LL_VERSION_BUILD = 0;