Fix bug in project_boundary_values_curl_conforming related to the wrong indexing of high-order DoFs in internals::compute_face_projection_curl_conforming.
Add test for project_boundary_values_curl_conforming
Fix test for project_boundary_values_curl_conforming
Add test output
Return a NaN instead of just a very large value to make the error condition
clearer.
Merge pull request #82 from agrayver/high_order_nedelec

Fix project_boundary_values_curl_conforming for high-order FE_Nedelec
Merge pull request #83 from bangerth/return-invalid-value

Follow a suggestion by k3daevin:
In TriaAccessor<2,3>::measure(), return a NaN instead of -1e10
to make the error condition clearer.