slight changes
merge branch 'master' of https://github.com/52North/IlwisCore

Conflicts:
	core/ilwisobjects/coverage/vertexiterator.cpp
	core/util/bresenham.cpp
Merge branch 'master' of https://github.com/52North/IlwisCore
Merge branch 'master' of https://github.com/52North/IlwisCore
Revert "moved from wfsconnector as they can be used by any ows (or similar) service"

This reverts commit 06139a89efe1b7e66fae8397794f40994aca75de.
Revert "renamed the & columndefinition(..) methods to & columndefintionRef(..) to forestall problems with requesting undefined columns and expecting an undefined column instead of a exception"

This reverts commit 87c59ce43121c57f9994ff22f3796d3c056b3674.
a
a
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improved containement test
columndefinition to columdefinitionRef & small fixes
Merge branch 'master' of https://github.com/52North/IlwisCore
changed plugin folder name from qtplugin to plugin
Merge branch 'master' of https://github.com/52North/IlwisCore
typo in datums
fixed georef string parsing
Merge branch 'master' of https://github.com/52North/IlwisCore