Missing macro'd math functions from libm
- Disable libopal (until it actually works)
- Fix proto loading from dylibs
- FSFindFolder() impl (untested)
- Disable libcrashhandler for now
Merge remote-tracking branch 'upstream/master'

Conflicts:
	CMakeLists.txt
	src/Cocoa/CMakeLists.txt
	src/libobjcdarwin/new/class.cpp
	src/thin/CMakeLists.txt
Consolidate with functions already in FileManager that I missed.
Try the darling loader first for dynamically loaded bundles.
Return any existing protocols (somebody could be calling conformsToProtocol for example.)