[SCM] Eigen3 packaging. branch, experimental, updated. upstream/3.1.0_alpha1-55-g48755b4

[Anton Gladky]

The following commit has been merged in the experimental branch:
commit 59f1b1f1ec5b8ffc10a8633dca448ddfc950b073
Merge: f1d93886f25346ccb1b5cc898fbabfc1665a1680 5a895931213b4535dd2150e0cdc47d58a48bb6e9
Author: Anton Gladky <gladky.anton at gmail.com>
Date:   Wed Dec 7 20:26:45 2011 +0100

    Merge branch 'master' into experimental


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Eigen3 packaging.