I don't understand why a 'code freeze' is such a big deal then?
What craptastic version-control system are you using?
Get to Mercurial or Git so you have good branch management.
Then there's a couple of ways to...
I am getting a crash using v1.5.9 with Craftbukkit version git-Bukkit-0.0.0-1067-g6301507-b1185jnks (MC: 1.8.1)
21:22:14 [SEVERE] Error occurred...
Separate names with a comma.