Remove several data members of Elem
Introduce an int type
Removed class Edge
Removed file Edge.cpp.h
Changed the type of one member of Elem
Replace type of data member nodes of class Elem
Remove matrix and vector classes
Merge branch 'trunk'
New version
Merge branch 'trunk'
Removed file Grain.cpp
Add a sort assertion in case options are missing
Merge branch 'trunk'
Merge pull request #2 from wenqing/master

Reduced memory usage and removed serveral files