* readme: clarification for authentication on Firefox

* TaskDetails: change commit message to be more consistent with BuildDetails

* Task/BuildDetails: seperated out new `CommitMessage` component

* CommitMessage: cleaned up interface a tad

* CommitMessage: render basic "markdown"

* CommitMessage: clean the logic up a little

* CommitMessage: won't render if odd number of delimiters found

* CommitMessage: separated out `CommitTitle` for use in other places around the UI

* CommitTitle: use `ReactMarkdown` component instead of manually rendering