Changes for version 0.3
- Add CONFIG_REQUIRES EU::MM 6.56 to work around a FAIL from a tester with an old EU::MM that didn't understand BUILD_REQUIRES.
- Updated t/01test.t to use a proper URL so it tests getting a .pac file from the net.
- Optimized reading file from the internet for new(URL).
- Eliminated dependence on POSIX.
- HTTP::ProxyAutoConfig - use a .pac or wpad.dat file to get proxy information