Introduced in f9f0e5c7

Closes GH-579.

Closes GH-586.

Thanks Kevin. Closes GH-518.

Closes GH-557.
Closes GH-539.

Thanks Bjarki. Closes GH-561.

Thanks Pierre. Closes GH-571.

require('./foo/') should not try to load './foo.js'.  It should only
look for ./foo/index.js

Closes GH-588

Hopefully wont get failures on buildbot slaves.

This reverts commit 8bd7e4fa.

This is meant as a path for upgrading to the new http.request() API.
http.Client will be disappearing in the future.

so `node foo`
will load one of:
./foo.js
./foo.node
./foo/index.js
./foo/index.node

Test cases added.
Ensured no conflict with native names.

- Made backward/forward more convenient
- More key bindings that windows users are used to
- Fix delete-word-right
- Duplicate code cleanup

only works on solaris

This patch introduces a logical structure and sequence for the
bootstrap code found src/node.js.

The windows socket api uses handles, not fds. Libev caches the handle
associated with an fd, and uses this handle when updating the (also cached)
handle set that goes into select(). When an fd is closed and subsequently
re-used before the event loop returns to libev, libev fails to detect
properly that the handle changed. And even if it does, the cached handle of
the closed socket is overwritten by the new handle, so by the time libev
tries to update the select fdset it has forgotten which handle to remove
from it. This is solved by a simple hook ev_fd_closed that makes it clear
its caches before the fd is re-used.

This de-couples NativeModule from the module system and completes the
main objective of this refactoring.