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Merge branch 'languages' into develop
plot.section() grids data if needed (issue 397)
Merge branch 'develop' into languages
Merge branch 'languages' into develop
improve German (thanks SK)
Merge branch 'languages' into develop
translation
Merge branch 'develop' into languages
Merge branch 'languages' into develop
oceApprox bug fix (issue 392)
oceApprox bug fix (issue 392)
plotProfile and plotTS get arg pt.bg (issue 399)

This permits symbols filled with one colour, outlined with another.
remove a debugging line
ctdDecimate() no longer dies if lm() fails
ctdDecimate() no longer dies if lm() fails
mapContour() improvement (issue 404)
only load 'mapproj' and 'ncdf' as needed (issue 405)
use ncdf4 instead of ncdf
drifter plots coastline by default now