Adding descriptions for math classes.
Fixing x11 build
Thread API Wait no returns int (exit code)
API Threads only instantiable by children
X11 threads working
Merge branch 'contribution' of https://github.com/FunkyCat/bakge into contribution

Conflicts:
	include/bakge/data/LinkedList.h
	src/CMakeLists.txt
	test/CMakeLists.txt
	test/linkedlist.cpp
Merge branch 'contribution' of https://github.com/palistov/bakge into contribution
Formatting/Style tweaks.
Merging recent master changes