OPM/opm-parser — pull request #147 by qilicun (2014-03-18 00:30:47+00:00)
Title: Polymer keywords

This PR add polymer keywords for opm-parser, I am not sure the table which I used is correct, just imitate **PVTO** and **PVTW**. Following is the summary:
- **PLMIXPAR**, for Todd-Longstaff mixing parameter.
- **PLYADS**, for polymer adsorption.
- **PLYMAX**, for calculation of water effective viscosity.
- **PLYROCK**, for permeability reduction.
- **PLYVISC**, for calculation of water effective viscosity.
- **PLYSHEAR**, for shear thinning and shear thickening.