initial implementation of radius-edge-metric
removed lots and lots of pointers
added new metric to gui
adjusted author
Enabled PETSc 3.5
removed parameter-name to avoid compiler warning
Specify full path in #include.

This is required for an upcoming application.
It was already discussed in #89 and will come up
with more changes as the application grows. So
step by step all #includes will have the full
paths prepended.
[IO] Clarify which mesh file was read.
[ML] Specify full path for some includes.
Consistent copyright year 2012-2014.
Merge pull request #449 from rinkk/RadiusEdgeMetric

Radius edge quality metric for meshes
Changed if-condition for PETSc version according to the suggestion by Nori
Merge pull request #452 from endJunction/Cleanup

Cleanup
[bugfix] fixed issue where raster to mesh conversion would fail if all all intensity values were negative
Merge branch 'master' of https://github.com/ufz/ogs
Replace BaseLib::number2str with std::to_string.

Also remove the header StringTools.h everywhere.
Add a previously missing sstream include in DateTools.cpp.
[GeoLib] Another version for GEOObjects::getGeoObjects().

The commit is a preparation to access GeoObject objects via the geometry
name and the object name (patch name).
Merge pull request #448 from TomFischer/GeoLibGetGeoObjectsByName

[GeoLib] Another version for GEOObjects::getGeoObjects().
Merge pull request #456 from endJunction/StdToString

Replace BaseLib::number2str with std::to_string.
Added one more condition for PETSc versions