sfcalcsheet v0.12
Feature/maintenance release.
- New converter: Simple calculator
- Wider columns due to font kerning in Google Sheets
- Lots of additions to the README and the wiki
- Updated list of supported office suites
- Tweaks to how orbital periods are displayed
- Better support for input in exponential notation
- Planetary habitability: Added various habitable zone limits
- Iron content input in “Structure properties and resources”
- Impact sheet renamed to “Disaster”
- Small consistency fix to “Bomb blast”