Some signal tweaks from the Mac
More fibers work; still need to improve join scheduling.
Trying to get rid of stray 'ahead by suprious commits' messages
InetAddresses::increment()
zed5util cidr <prefix> enumerate
Enumerate multiple prefixes on the command line
Consider whether/how to have a notification chain.
Minor compilation fixes

  * fix lint line length to not count trailing '\n'
  * try to quell narrowing conversion warnings
  * try to quell strict aliasing warnings
Changes for C++11
NO_MOVE_ASSIGNMENT_OPERATOR
Miscellaneous cleanup/reorg.

    - SocketAddresses is now a static class
    - Remove MTU from NetworkInterface (for now)
Make fabricate not create .pyc files.
Minor tinkering

  * misc cleanup
  * mark some thing inline
  * s/AF_LOCAL/AF_UNIX/g
  * partial progress on separating InetSocketAddress
    and UnixSocketAddress
Add a simple test for dualstack sockets and sockaddr_in use
Merge branch 'master' of https://bitbucket.org/ekline/zed5
scoped memory cleanup

    - replace scoped_array with std::unique_ptr
    - remove scoped_malloc altogether (unused)
    - replace scoped_ptr with std::unique_ptr
Fiber internal refactoring.
Start of ASN wrapper class.
More developement of ASNs
Lots of rework for clang

- Fabricate config changes for clang++
- code changes for clang++ compiler warnings
- general code cleanup inspired by clang refactoring