v0.7.0 Friday 13th

What's Changed

• Fix a long-standing bug regarding the internal implementation of WCS coordinates, which had multiple consequences, see #276 for details.
• This fix might break some existing codes using work-arounds for the bug described above.

Full Changelog: v0.6.2...v0.7.0

Many thanks to @teutoburg for tackling this off-by-one bug, which turned out to be even more complex than anticipated! Everything should now be internally consistent. Please let us know in an issue or on Slack if we missed a spot.