libdot 1.4, hterm 1.13, nassh 0.8.20.1, fix zoom warning.

* Fix the omnipresent zoom warning on current chrome builds.
* Fix libdot/changelog/(version|date) resources.
* Fix jscompiler errors.
* Stop printing "CSI K", "CSI ? J", and "ESC #" sequences with bad params.
* Add changelog docs for previous commits.

BUG=chromium:259001
TEST=hterm_test.html, 66/66 tests passed.

Change-Id: I8c2585c856e17bf6e21958bf7cb065839d60ceb6
Reviewed-on: https://gerrit.chromium.org/gerrit/62591
Commit-Queue: Robert Ginda <rginda@chromium.org>
Reviewed-by: Robert Ginda <rginda@chromium.org>
Tested-by: Robert Ginda <rginda@chromium.org>

• hterm/concat/hterm_deps.concat[diff]
• hterm/doc/changelog.txt[diff]
• hterm/js/hterm_scrollport.js[diff]
• hterm/js/hterm_vt.js[diff]
• libdot/doc/changelog.txt[diff]
• libdot/js/lib_colors.js[diff]
• libdot/js/lib_fs.js[diff]
• nassh/doc/changelog.txt[diff]
• nassh/manifest.json[diff]