Ensured all headers are header-only.
Added scripts, TODO: move them into another repo.
New top-level make check.
Cleaned up Makefile targets.
Tweaked net/api/test.cc for coverage report.
Fixed make check and make coverage targets.
Typo fix in the comment.
A cleaner URL test.
Cleaner comment for the #define.
Bash tweaks.
Added another forgotten inline.
Comment phrasing.
Minor touches.
URL parsing exceptions + minor touches.
Tweaked .clang-format
Cleaner make clean targets.
More Makefile cleanup, this will get unified soon.
Merge pull request #20 from dkorolev/master

Header-only integrity check + more.