By default, markdown within an HTML block element is not parsed.
Add markdown extension to support markdown text within block
elements.
With this we can annotate our element with a "markdown" attribute:
E.g. <details markdown>*Markdown*</details>
And thus indicate that the content should be parsed.
Signed-off-by: moson <moson@archlinux.org>
The chance of finding multiple object IDs when performing lookups with
a shortened SHA1 hash (7 digits) seems to be quite high.
In those cases pygit2 will throw an error.
Let's catch those exceptions and gracefully handle them.
Fixes: aurweb-errors#496 (and alike)
Signed-off-by: moson <moson@archlinux.org>
