Merge 80908,80939,80957 from /trunk
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r80908 | jewillco | 2012-10-08 22:04:48 +0200 (Mo, 08 Okt 2012) | 1 line
Added attempt at workaround for VC++ const graph type bug
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r80939 | jewillco | 2012-10-10 19:27:44 +0200 (Mi, 10 Okt 2012) | 1 line
Added another remove_const to work around VC++ 9 issues
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r80957 | jewillco | 2012-10-11 18:45:33 +0200 (Do, 11 Okt 2012) | 1 line
Added test from Juergen Hunold
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