Cocoanetics/DTCoreText — pull request #165 by tonycn (2012-04-09 12:10:58+00:00)
Title: Need __block for ios4 for block weak ref in DTAttributedTextContentView.m

Just look up some information about arc library used in non-arc, and found __block is need in ios4 since __weak is not supported in ios4. Sorry to split the issue to two pull request