add .gitattributes to fix EOL is CRLF, i.e. Windowns format
Normalize line endings
fix a bug in calculation of 9th node coordinates of quad elements
add a function in Mesh class to output nodes as vertex into VTK
export quadratic nodes to Metis if selected
--ogs2metis reads -q and export VTK for checking
support quad order in --ogs2metis and --metis2ogs (node-based)
refractor vec. template class definitions should be in header.
local nodes are ordered by inner linear, ghost linear, inner quad and ghost quad.
fix warnings
fix renumbered mesh output into OGS and VTK
format
refactor
add isQuadratic() to node. node id cannot be trusted
rename some functions
renumber firstly linear node ids and then quadratic node ids
correct local node index
number of non ghost linear nodes in elements was wrong
delete unused
Merge pull request #1 from norihiro-w/use-quad2mesh-by-order

support quadratic order mesh