add du-sort(1) script to sort `du -h` output
improve MiniTest assert_equal diffing with wdiff(1)
gdiff: keep it simple - always do word differences
tmux: avoid utf-8 issues using solid pane borders

https://code.google.com/p/chromium/issues/detail?id=278340

https://groups.google.com/a/chromium.org/d/msg/chromium-hterm/e0XXBV7UqcI/qDnpkBS8PLAJ
edit-text-field: add support for ChromeOS clipboard