fpgatools

We should use --ignore-fail-on-non-empty instead of -rf

Merge pull request #5 from bentley/master

%lX is too small to contain uint64 on 32-bit platforms, so use %llX. thanks to bentley

Merge pull request #6 from bentley/format-warn

Merge pull request #8 from davexunit/wip-xc6slx45