fix opm-parser find rule

deals with the fallout of opm-parser #365 and #366
Merge pull request #236 from akva2/fix_opmparser

fix opm-parser find rule
[bugfix] use SparseLU when UMFPack was not found.
Merge pull request #238 from dr-robertk/PR/sparselu-when-no-umfpack

[bugfix] use SparseLU when UMFPack was not found.
Added ignore to emacs per directory configuration file.
Added opm_init_check to compare OPM and Eclipse.
Python class TransGraph to load json from opm_init_check
Merge pull request #243 from joakim-hove/init-check

Init check
Include <config.h> to fix build on GCC 4.8

GCC 4.8 provides 'nullptr' in C++11 mode.  That capability is
detected at configuration time and stored in <config.h> and we need
it when targeting Dune 2.2.1 to avoid diagnostics of the form

  [...]/dune/common/nullptr.hh:27:1:
  error: expected ‘;’ after class definition
   } nullptr = {};              // and whose name is nullptr
    ^

  [...]/dune/common/nullptr.hh:27:1:
  error: qualifiers can only be specified for objects and functions
  [...]/dune/common/nullptr.hh:27:3:
  error: expected unqualified-id before ‘nullptr’
   } nullptr = {};              // and whose name is nullptr
Merge pull request #244 from bska/fix-build-gcc48

Include <config.h> to fix build on GCC 4.8