panama repo summer cleaning

[John Rose]

Thanks Maurizio!

> On Jun 21, 2019, at 12:21 PM, Maurizio Cimadamore <maurizio.cimadamore at oracle.com> wrote:
> 
> Hi,
> after some internal discussions, I've decided to clean up the panama repository a little bit. Two branches have been removed:
> 
> * array2
> * vectorSnippets
> 
> These branches were no longer being worked on - and it was confusing for them to show up in 'hg branches' (especially for the vector one).
> 
> I've also disabled our automerge infra on all vector branches - this is because merge of the vector branches involve quite a bit of intricate changes, so it's best to leave the decision to the experts. Conversely, all the foreign branches (foreign, foreign-memaccess, linkToNative and foreign+linkToNative) will keep the automerge on, since it's relatively smooth there.
> 
> Cheers
> Maurizio
>