deprecated delete and manual memory management

[ulrik.mikaelsson at gmail.com]

Den, skrevJacob Carlborg <doob at me.com>:
> Yeah, that's correct. But in this case I think he actually was referring  
> to the latest commit. I'm pretty sure I've heard the latest commit in SVN  
> be referred to as "trunk".

I'm too curious for my own good, so I had to waste some time to investigate.

It seems HEAD is a meta-reference, pointing to some other reference (such  
as some other branch or a specific commit). For a full repository, it's  
also the base of the current checkout. (Or really, the index, for anyone  
else in my currently nit-picking mood).

For a bare repository (IE without a working-copy such as you would find on  
GitHub), it seems to be whatever HEAD was in the repository that was  
initially cloned to create the bare repository.

So, in the case assumed here, HEAD is the same thing as master, but it can  
really be anything (including the initial zero-commit). So "master", is  
always the last commit in the "master" branch, while HEAD can be anything.

I think "master" is always a better translation of "trunk". :)
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