Eclipse does not have a PERM keyword
fix some keyword names

The queried keywords are unknown to the parser and after manual
inspection also to the Eclipse RM. There might be wrong keywords some
left, but these were to ones needed to get SPE9 started using
sim_fibo_ad...
Merge pull request #596 from andlaus/fix_some_keyword_names

Fix some keyword names
Glue in support for the grid property modifier keywords

this basically means using Opm::EclipseState instead of the raw deck
for these keywords.

with this, property modifiers like ADD, MULT, COPY and friends are
supported for at least the PERM* keywords. If additional keywords are
required these can be added relatively easily as well.

no ctest regressions have been observed with this patch on my machine.
Findopm-parser.cmake: make sure that the ERT libraries are available

and some other minor cleanups to the module. For me it still works,
but this being the build system, I can't guarantee more...
Merge pull request #598 from andlaus/enable_property_modifiers

Glue in support for the grid property modifier keywords
Findopm-parser.cmake: invoke FindBoost unconditionally

even if boost was found previously, it might still miss a few
libraries. thanks to @akva2 for catching this.
Merge pull request #599 from andlaus/add_ERT_to_opm-parser

explicitly add the ERT libraries to the prerequisites of opm-parser
[buildsystem] Disable search for Boost in parser detection

This changeset disables the effect of commit e9a5e82.  There appears
to be an unforeseen interaction between the calls to

    Find_Package (Boost)

that are implied by module 'opm-parser-prereqs.cmake' and the one
that's directly invoked in 'Findopm-parser.cmake'.  Until the
situation can be fully analysed and a complete solution implemented,
this is a temporary measure to restore the build of opm-core and
downstream OPM modules.
Merge pull request #600 from bska/restore-build

[buildsystem] Disable search for Boost in parser detection
added: hook for conditionally compiled files

backport from opm-upscaling PR#100
Merge pull request #602 from akva2/add_files_hook

added: hook for conditionally compiled files
fixed: dune-cornerpoint (now) needs the dune-common version information
Merge pull request #603 from akva2/fix_cp_prereqs

fixed: dune-cornerpoint (now) needs the dune-common version information
Findopm-parser.cmake: Fix it up, next try

thanks to Arne Morten Kvarving, Bård Skaflestad and Roland Kaufmann
for the discussion.
Merge pull request #601 from andlaus/fix_Findopm-parser.cmake_next_try

Findopm-parser.cmake: Fix it up, next try
fixed: tutorials should include config.h conditionally
added: build system for tutorials
Merge pull request #604 from akva2/build_tutorials

Build tutorials
Scaling of capillary pressure.