Reordered delete operations.
Reordered delete operations.

When deleting data, we now go in this order:
1) gitdm data
2) gitdm master entries
3) repos
4) projects

This way if a delete fails (php runs out of memory, or execution
takes too long) you can restart the delete.

brianwarner/facade,brianwarner/facade,mkdolan/facade,mkdolan/facade,mkdolan/facade,brianwarner/facade