libuEv v1.1.0

Massively improved error handling.

Changes

• Handle case when user closes a descriptor before stopping a watcher.
• Handle EPOLLHUP and EPOLLERR. Restart epoll(7) descriptor and
  all watchers when an error count reaches a MAX value -- handles stale
  descriptors or cases when kernel does not notice updated descriptors.
• Return error when stopping a watcher fails.
• Update README.md with new uev_*_start() functions.
• Bump dev version to 1.1 due to the number of significant changes.

Fixes

• Remove test.c from DISTFILES in Makefile. You need the
  comeplete sources to build the examples now. Thanks to @karasz for
  the heads up on this and the musl libc issue with missing queue.h!
• Fix broken link to [v1.0.5] in this file.