[SCM] osgearth annotated tag, debian/1.4-6, deleted. debian/1.4-6

[Pirmin Kalberer]

The annotated tag, debian/1.4-6 has been deleted
       was  edb78c72f2e7725b1b0cd02c07c521fdfcba3259

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tag debian/1.4-6

Debian release 1.4-6
2a51e05317863cdd8b6f17abcf04d1b0685191a1 Imported Debian patch 1.4-6
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osgEarth terrain rendering toolkit