Add MINPV processing to grid construction.
Merge pull request #106 from atgeirr/add-minpv

Add MINPV processing to grid construction.
Forward declare CpGridData class.

The CpGridData.hpp header uses version macros, and should therefore
be considered a private header. With this we avoid including that
file from CpGrid.hpp.
Merge pull request #108 from atgeirr/forward-declare-cpgriddata

Forward declare CpGridData class.
update debian packaging
Merge pull request #109 from akva2/debian_packaging

update debian packaging
fix opm-parser find rule

deals with the fallout of opm-parser #365 and #366
[bugfix] dune version 3.0 has been renamed to 2.4. collectivecommunication is available
in sub folder parallel since 2.3. So lets use it from there.
Merge pull request #111 from dr-robertk/PR/dune-version-3-bug

[bugfix] dune version 3.0 has been renamed to 2.4.
Merge pull request #110 from akva2/fix_opmparser

fix opm-parser find rule
FindERT.cmake: Look for libecl_well library
Merge pull request #113 from joakim-hove/FindERT-update

FindERT.cmake: Look for libecl_well library
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.
add the boost::regex library as a prerequisite

this is required for regex-matching keywords. Once GCC 4.9 is the
minimum compiler version to be supported, this can be dropped in favor
of std::regex ...
Find-ewoms.cmake: update prerequisites
FindCXX11Features: check for a usable std::regex

and add a config.h variable in the opm-parser test.
use extended regular expressions in the test for std::regex

for some compilers (e.g., GCC < 4.9) the default is buggy and
opm-parser thus uses extended expressions...

thanks to [at]bska for digging this up!
fixed: ERT depends on libdl

this issue was triggered with static libs for ERT
Build system: mark ERT as REQUIRED

de facto, this does not change anything because opm-parser is required
and it has a hard dependency on ERT. It is good style to declare all
prerequisites explicitly in each module, though. Thanks to [at]bska
for the catch.