`builder.sh` improvements armv6h support

Hi,

I've added a sync task to `builder.sh` to make it easier for me to push new packages up to the rsync server that Stefano pulls from. 

armv6h support is complete and I have built the entire package tree on a Raspberry Pi. The new arm6vh packages will sync the the official repo later today.

Some minor fixes for the initial packages in the `mate-community` repo.

Regards, Martin.