For slicer update tiff io

Patches from the ITK's Module/IO/TIFF where cherry-picked onto the the "slicer-v4.6.0-2014-09-19-554e46a" slicer branch/tag.  This pull request only updates files in the Modules/IO/TIFF directory. The the following command was used:

git rev-list --no-merges --reverse ..origin/master Modules/IO/TIFF/ | sed '/3f712cd/d' | while read rev ; do git cherry-pick $rev || break; done

where commit 3f712cd was excluded due to conflicting global changes.