v0.5.1

The version 0.5.1 of tbot fixes the wrong assumption that all code blocks have a defined language, which causes parsing errors whenever a code block without a language is received. This fix is a potential breaking change as it changes the type of code blocks' language from String to Option. However, we tested the patch on open-source bots from GitHub and they continue to compile. Even if this patch affects your bot, it points to the erroneous assumption on your side which should be fixed.

This issue was reported in issue #32 and fixed in merge request !171. Refer to them for additional information about the bug.