use $().text() instead of .safeHtml for sourceSnudown
marginally nicer × for the image resolution tooltip
Merge pull request #1841 from erikdesjardins/tooltip-res

Marginally nicer × for the image resolution tooltip
Merge pull request #1839 from erikdesjardins/fix-1836

use $().text() instead of .safeHtml for sourceSnudown
gulpfile: Use strict mode, re-indent