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
Changed unit in PVTG.
Merge pull request #162 from joakim-hove/PVTG-unit-change

Changed unit in PVTG.
DeckItem: introduce getTrimmedString()

which is like getString() but with the leading and trailing white
space removed. It is intended for names which seem to not care about
such white space in Eclipse.
Schedule: trim strings which are received from the deck

for SPE-9 only the well/group names contain spurious white space, but
I suppose that other decks also feature them in control modes, status,
etc. so it's probably a good idea to trim these as well...
schedule tests: add some spaces around some names