Merge pull request #512 from Grunthos/master

Begiining of incremental export
Create strings.xml

dutch translation
Update strings.xml

until #239
Update strings.xml

bij #299
This is the dutch translation

added Duch nl_NL translation. Except CDATA
Update strings.xml

some spelling corrections
Update strings.xml

notedop => notendop
Update strings.xml

translation of CDATE strings added.
Update strings.xml

some correction of typos, some more CDATE translations.
Merge pull request #541 from gvmelle/master

Dutch translation
Merge pull request #43 from eleybourn/master

Dutch translations