refactored Edge class into TemplateLine class
fixed inconsistent indentation
Merge pull request #381 from rinkk/EdgeLineMerge

TemplateLine refactoring
fixed issue where geometries with multiple polygons where rendered incorrectly
some minimal style changes to polylines source
fixed an issue where GMSH wouldn't be found if there was a whitespace in the path
added missing neighbour initialisation in one of the TemplateLine constructors
removed accidentally added whiteline again
[NL] Typo in doxygen parameter.
fixed copy constructor of line element where neighbours were not copied
Merge branch 'master' of https://github.com/ufz/ogs
add dimension, n_all_nodes, n_base_nodes to element classes as static const
use the static const variables in getoDimension() and getNNodes()
Merge pull request #384 from norihiro-w/add-static-const-vars-to-elements

Add static const variables to elements