Commit [2cd1af] Maximize Restore History

Merged /trunk:r1770-1863

git-svn-id: svn://svn.code.sf.net/p/stxxl/code/branches/demsort_adaptations@1866 4e380d45-d1fd-0310-85a7-d18ec86df0ad

Johannes Singler Johannes Singler 2009-09-15