Just as an FYI, I went in and recategorized all but 9 of the "unknown/no component" tomahawk issues, creating new components as relevent. The remaining few either affect Tomahawk as a whole, deal with obscure sandbox components, or were too "weird" to categorize (like installing tomahawk changes JSF RI date formats).
Actually, there's a couple in there on extended standard components. I notice that we don't list out the extended standard components, nor do we document them on our web pages. I'm going to open a JIRA issue on the documentation part.