Added wells to groups.
Added new WellSet class - just a thin wrapper around std::map
Implemted Group with external WellSet class.
Added groupName as a DyanmicState<std::string> property of the Well class
Added createStep flag to Well constructor to be able to track well creation time.
Added createTimeStep to Group constructor to keep track of group creation time
Will create and delete Group <-> Well relationships based on the WELSPECS keyword.
Changed createTimeStep -> creationTimeStep for readability.
Merge pull request #56 from joakim-hove/group-has-well

Added wells to groups.
Added some keywords for NORNE
Changed EclipseDoctor to strict parsing
Changed NSTACK keyword, one too many keyword, added two other
Merge pull request #57 from flikka/norne-keywords

Changed NSTACK keyword, one too many keyword, added two other
Added some keywords for NORNE
Changed EclipseDoctor to strict parsing
Merge pull request #58 from joakim-hove/norne-keywords

Norne keywords
Merged upstream/master
Added simple wildcard (trailing '*') support in ParserKeyword.
Changed one item name in EQLDIMS table.
Changed parser to support parsing of keywords with wildcard like
"TVDP*". An importtant change is that we now query the parser
canParseKeyword() instead of hasKeyword().