use XMLUtils for various cast XML reading/writing
read <order> tag for cast from scrapers/XML, fixing reading of cast from themoviedb.org
CLangInfo: fix loading of languages after 92214e362b1b73f9f3629a5e8686709b6191e3dc
we don't save the value of lookandfeel.skintheme/skincolor with the .xml extension (anymore)
settings: fix value update of string settings depending on the value of another string setting (fixes #14648)
fix pydocs contents
Merge pull request #3478 from koying/quickpr

FIX: jni c/p typo
Merge pull request #3473 from jmarshallnz/actor_order

Actor order fixes
[langauge] fix some spelling and clarify "dependencies not met"
FIX: [stagefright] dyload the whole codec to prevent potential future api breakage