v2.9.0
Added the beginnings of some unit tests. Also found a fixed a couple of little bugs while in OptionsStore while writing the tests.
Expanded and fixed tests. Markdown detection no longer detects light emphasis.
Added automatic anchors for headers. Fulfils issue #93.
Added test cases for issue #104
Added/fixed jshint rules for tests
Hide auto-tests link for any platform other than Chrome and Firefox -- the page doesn't yet work in Thunderbird
Replaced use of outerHTML (and added tests for new function)
Changed value of data-md-url attribute in wrapper to be hostname only. Including the full URL would probably a privacy/security mistake.