11.3.0 development build 3 released

[Daniel Drake]

http://wiki.laptop.org/go/11.3.0

http://build.laptop.org/11.3.0/os3

No XO-1.75 support yet.

Notable changes since build 2:
- Fedora updates including Firefox, GIMP
- XO-1.5 firmware Q3B19
- Sugar 0.93.3
- Abacus updated to v22
- Distance updated to v25
- FotoToon update to v8
- GetBooks updated to v9
- Measure updated to v33
- Paint updated to v36
- Ruler updated to v11
- TamTam* updated to v59
- Terminal updated to v34
- TurtleArt updated to v114

Tickets closed:
#10781 	Distance Activity needs to enforce sane Atmospheric conditions