move MeshInformation into MeshLib namespace
add missing include in OGSFileConverter
make MemWatch class being accessible on any platforms, though it does nothing on Windows and Mac.
add a tool checkMesh
fix indentation
use Git SHA for version number
use FileIO::readMeshFromFile()
make the input file argument as unlabeled
add -v option to validate the mesh using MeshValidation class
introduce getNBaseNodes() to Element
add nonlinear nodes into Mesh
Merge pull request #502 from norihiro-w/tool-mesh-summary

new tool "checkMesh"
Merge pull request #507 from norihiro-w/rename-getNBaseNodes

introduce getNBaseNodes() to Element
add Line3
support quadratic edges in Quad8 and Quad9
make Element::getEdge() virtual function
support the order dependent behavior of getEdge() by override