Parametrize the toc but have default values

[snejus]

Hey, firstly - you're an absolute legend for coming up with this tool. It's saving me hours every week and I stopped dreaming nightmares not having to deal with that editor.

Sorry that this is coming without an issue or a request - I just extended the code when I quickly needed to change things in the default TOC.

The template includes something that be unusual - newlines for each of the parameters. I do sometimes double-check the xhtmls before uploading, and they end up a bit more readable this way. The output on confluence isn't different as far as I could tell. For example:

Input:

<!-- Macro: :toc:
     Template: ac:toc
     Style: circle
     MaxLevel: 3 -->

Output:

<p><ac:structured-macro ac:name="toc">
<ac:parameter ac:name="printable">true</ac:parameter>
<ac:parameter ac:name="style">circle</ac:parameter>
<ac:parameter ac:name="maxLevel">3</ac:parameter>
<ac:parameter ac:name="indent"></ac:parameter>
<ac:parameter ac:name="minLevel">1</ac:parameter>
<ac:parameter ac:name="exclude"></ac:parameter>
<ac:parameter ac:name="type">list</ac:parameter>
<ac:parameter ac:name="outline">clear</ac:parameter>
<ac:parameter ac:name="include"></ac:parameter>
</ac:structured-macro></p>

I'll be adding another PR with a little extension to the code blocks.