Do you want a README that's *useful*? Picky, picky.
Fix logic error in logical_or. (See what I did there?)
Merge pull request #64 from cartec/Casey

Fix logic error in logical_or. (See what I did there?)
metafunction clean-up
Merge on README.md fixed
Merge branch 'master' of https://github.com/Manu343726/range-v3