830797a9c3
Previously we would always take the first image in a post to use as the thumbnail. On media-heavy sites, users may want to manually select a specific image as the topic thumbnail. This commit allows this to be done via a `|thumbnail` attribute in markdown. For example, in this case, bbb would be chosen as the thumbnail: ```   ``` |
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| controllers | ||
| helpers | ||
| jobs | ||
| mailers | ||
| models | ||
| serializers | ||
| services | ||
| views | ||