Merge pull request luvit#318 from squeek502/libuv-1.27.0

Update to Libuv 1.27.0

Release 1.26.0-0

Release v1.25.0-0

Bump version to 1.22.0-1

Update rockspec for new version

Luv v1.9.1-1 Release

 - Fix upstream lua submodule (Tim Caswell)
 - Fix crash when handles are nil (Ryan Phillips)
 - Fix compile for VS2008 (zhangtj)

Just a bump to match libuv version used.

Luv v1.9.1-0 Release

Just a bump to match libuv version used.

Luv v1.9.0-5 Release

 - Fix handles to not free luv_handle_t till after parent is GCed [Tim Caswell]

Luv 1.9.0-4 Release

 - Fix memory leak where callbacks were never unref'ed in error cases.