Fix some more issues
Merge branch 'master' of https://github.com/OpenLightingProject/ola into libusb
Merge branch 'master' of https://github.com/OpenLightingProject/ola into libusb
Merge branch 'master' of https://github.com/OpenLightingProject/ola into libusb
Merge branch 'master' of https://github.com/OpenLightingProject/ola into libusb
Basic optimised ToHex function from Simon's idea
Tidy up the type, add prefix and document it
Switch stuff to use ToHex, resolving Simon's comment
Fix the build
Fix the lint and Doxygen issues
Switch the remaining code to use the new ToHex function
Address a comment
Fix the comments
Switch IntToHexString to use the new ToHex function
Fix the build
Fix the clang issues
Try again to fix the clang issues
Merge pull request #573 from peternewman/libusb

Fix some more issues