Automagically parse stuff without leading character

[IvanSanchez]

From a conversation with @mourner:

Is the 🍂really mandatory or can we just get rid of it in Leafdoc and do some simple heuristics to determine if a comment is a docs comment? Always hated rules that /** jsdoc one, this was is even harsher
e.g. if a comment looks like method foo(), it's probably a doc; if it's parsed like a doc and there's an error, we could just ignore it

[ddproxy]

I'd gander that a switch to turn this on would be appropriate, with warnings.

[IvanSanchez]

Since the code is now using multilang-extract-comments, it would be possible to check if a psrsed comment block has the apidoc property.