Diff of TclTk8.4.9

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Deleting diff of TclTk8.4.9

8.4.8のリリースで見つかったバグ潰しっぽい

***ChangeLog [#a7f009ea]
-Fixed segfault in info vars trivial matching branch (new in 8.4.8)
-Fixed the treatment of backslashes in file join on Windows
-Improved readdir_r detection and usage on unix
-Fixed potential unix fileevent issue on 64-bit systems
-Remove file normalize on tcl_findLibrary search path uniqification added in 8.4.8
-Ensure tilde paths are not returned specially by 'glob'
-Fixed clipping of partially transparent images on buttons on unix to avoid X error
-Fix Tk_PhotoPut(Zoomed)Block overlay compositing of partially transparent areas on blank targets

***ActiveTcl8.4.9で気になったとこ [#i7088869]
-itkが3.3になった