Changed cmake file from listing all files to glob.
Due to structure of the code some files need to be removed. This is not optimal.
AGMG support is not integrated.
The CMakeFile make it easy to use opm-core in qtcreator.
Add a utility for creating a grid from textual representation.

There is little to no error checking, and the importer assumes that the
grid is serialised more or less directly from the grid structure.

Intended use: Testing on non-uniform grids created in MRST.
Add a simple test to demonstrate grid input.

Should be extended to test that the input is sane, too.
Added new SatFuncSimple fluid.
Introduced a simple fluid which has no problem with strange black oil behavior.
Intended for testing, but for now it is used in SaturationPropsFromDeck.
Added functionality to compute porosity for compressible fluid.
Added private member function getNumericErtFields
Defined private member function 'getNumericErtFields' in class 'EclipseGridParser'

The function stores data from one file from keyword IMPORT.
The file in 'fortio' format is read by ERT-functions.
Add debugging assertions to check input in several routines.
Introduced posibility to change number of sample points for pvt.
Did change the PVTW calculation so derivatives are exact.
Extended the test functions for pvt and relperm
Improve documentation.
Fixed comment.
Merge pull request #23 from xavierr/master

Changes needed by polymer solver.
Removed redundant header file include.
Merge branch 'master' into nonuniform_fluid_tables
Merge remote-tracking branch 'upstream/master'
Merge remote-tracking branch 'hnil/master'
Added more checks in 3-phase init code.
Whitespace cleanup and adding a check for #phases <= 3.
Documented new constructor. Fixed layout.
Minor formatting fixes.