[id3v2] some apps write TXXX tags using UPPERCASE and some with lowercase. Support both.
depends: fix already installed check on osx

Avoid depending on .so files which could be .dylib on osx
Fix some invalid dependencies
Better caching and updating for dynamic list provider
Cosmetic changes
fixed: Auto extracted stream details were never stored the stacks
Merge pull request #4253 from jmarshallnz/shouty_tags

[id3v2] some apps write TXXX tags using UPPERCASE and some with lowercase.
[language] drop reference to wiki in the ignore tokens setting.
Merge pull request #4286 from arnova/stack_streamdetails_fix

fixed: Auto extracted stream details were never stored the stacks
Merge pull request #4271 from elupus/depends_fix

depends: fix already installed check on osx
Merge pull request #4243 from Black09/directoryprovider-extensions

Better caching and updating for dynamic list provider