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
Merge pull request #384 from norihiro-w/add-static-const-vars-to-elements

Add static const variables to elements
add FeLINE2 and FeHEX8
add tests for FeLINE2 and FeHEX8
remove loops and reuse computed values