Bring neovim up to date with recent libuv changes

As of v0.11.23 libuv's uv_timer_cb, uv_async_cb, uv_prepare_cb, uv_check_cb and
uv_idle_cb no longer require a status parameter (this went unused in the first
place).

Bump third-party dependency `libuv` up to 0.11.23 and remove the extra
parameters from the callbacks.
Fix unit tests

Apparently busted 1.11.0 is broken(https://github.com/Olivine-Labs/busted/issues/236)
in a way that is causing the unit tests to fail. This pins the version to 1.10.0
and also fixes a wrong variable set when msgpack was added as a dependency
vim-patch:7.4.207

Problem:    The cursor report sequence is sometimes not recognized and results
            in entering replace mode.
Solution:   Also check for the cursor report when not asked for.

https://code.google.com/p/vim/source/detail?r=2aa909427e44cd3aac7def024b66e41d0c9d0e0d
Add more commented patch numbers to version.c

This should help reduce conflicts when merging patches from upstream
vim-patch:7.4.219

Problem:    When 'relativenumber' or 'cursorline' are set the window is
            redrawn much to often. (Patrick Hemmer, Dominique Pelle)
Solution:   Check the VALID_CROW flag instead of VALID_WROW.

https://code.google.com/p/vim/source/detail?r=37af1e6e91bb1e8ceb89d3ba1c49a04ffd889880