Sritchie merge#2

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sunng87 wants to merge 8 commits intosritchie:masterfrom

sunng87:sritchie-merge

Commits on Nov 23, 2011

enhance write-buffer using ObjectBuffer
sunng87
committed

Commits on Nov 24, 2011

Commits on Dec 10, 2011

Commits on Dec 17, 2011

Commits on Jan 17, 2012

merge with sritchie's fork
sunng87
committed