Corrected for missing initialisation of c.ptid and modified the check for...

Corrected for missing initialisation of c.ptid and modified the check for COMPRESSED data from a Attribute read to a QueryStringAttribute

library/LibUtilities/BasicUtils/MeshPartition.cpp

@@ -726,7 +726,7 @@ namespace Nektar
                 // check to see if compressed
                 std::string IsCompressed;
                 vSubElement->QueryStringAttribute("COMPRESSED",&IsCompressed); 
-                
+
                 x = vSubElement->FirstChildElement();
                 while(x)
                 {