0.0.7 Release changelist

- Mega feature: Linux and Mac builds! May need additional `chmod +x generation_ship` to work. Untested(yet). 

- Feature: rescue missions!
- Feature: building probes now takes time
- Feature: hints for a galaxy screen
- Feature: accessibility: game now can be played with mouse only
- Feature: planet names generation
- Fix: now less information is hidden by screen borders
- Fix: game over screen skipped too fast
- Fix: planet generation is now in both hemispheres
- Fix: probes now lose their speed when jumping to other systems
- Balance: now game is a bit harder to win

The more detailed release notes will be posted later