F11-for-XO1.5 Release 10.1.1 Release Candidate 4

[Chris Ball]

http://wiki.laptop.org/go/F11_for_1.5
http://build.laptop.org/10.1.1/os205

Compressed image size: 705.45mb (+0.16mb since build 204)

This is the fourth RC build for the 10.1.1 release.  Changes:

* #10186:  Fix permissions problem on /home/olpc
* #10175:  Fix "Record-81 generates audio/ogg file with silent start"
* #10183:  Fix "Record-82 crashes while saving a just-recorded audio clip
* #9112:   Fix "Enable Browse to embed PDF files in itself" regression