Added keyword configuration for keywords used in SPE9 example.
Two new keywords: RVVD and TOPS
Merge pull request #154 from osae/new_keyword

Two new keywords: RVVD and TOPS
Added functionality in Completion class to adjust I and J to wellHead value if they have been defaulted (i.e. have value -1). This is unfortunate because we loose quite a lot of const correctness.
Merge pull request #153 from joakim-hove/SPE9-keywords

Spe9 fix
Added getKeyword() method to Section class.
Added new keywords for parsing cartesian grid.
Added ERT dependency in build of opm-parser.
Added class EclipseGrid with constructor for cartesian grid from deck.
createDefaultKeywordList now able to generate dump file.
createDefaultKeywordList - minor refactoring
added support for dump files in createDefaultKeywordList.cpp
Changed cornerpoint related keywords to use FLOAT.
Added float data accessors.
Added ability to create EclipseGrid from cornerpoint keywords.
Marked parameter as const
New keyword PVDO
Added keywords for SPE9.
Merge pull request #160 from joakim-hove/SPE9-keywords

Added keywords for SPE9.
Merge pull request #161 from osae/kw-PVDO

New keyword PVDO