* Add category WELL_CONNECTION
* Throw exception if category string is invalid
* Make it possible to step connections
* Add definition of completion vectors
* Use WELL_CONNECTION for CPRL
* Convert "WGPRL__2:MY-WELL1-A5" to "WGPRL:MY-WELL1-A5:2"
Use the syntax for well completions in opm-common
* More tests for different variants of summary texts
865fbf0cba