[CB-3961] Fix nonfunctioning B-head links for compatibility table.
[CB-4412] a workaround is being found to correct the issue, currently being treated as a documentation issue
Merge remote-tracking branch 'ldeluca/master'

- pull request 110.
- could not cherry-pick or rebase cleanly.
Remove German and Russian config.json~
Remove unused korean language files.
rewrite config.xml ref
rename section as 'The config.xml File'
stage PGBuild content for platforms' config.xml
cleanup intros to plat-specific config.xml
bootstrap sample preference code
non-default preference values; light edits
gather queries
move PGB's icon/splash content to platform-specific config
rewrite platform-specific icon/splash content
rewrite global icon config content
Using BB10 config page, vanilla BB config is minimal
unrelated: removed empty stub for firefoxOS config
global icon/splash content; more queries; custom URLs in iOS
new icon/splash content for WP
link to WP icon/splash content