Maintain old setType method in WorldGenerator. Fixes BUKKIT-4915

WorldGenerator setType and setTypeAndData have their arguments changed to
add in support for CraftBlockChangeDelegate, which changes the method
signature. This change in the method signature breaks any WorldGenerators
that aren't modified to use CraftBlockChangeDelegate.

This commit fixes the issue by readding the old method and maintaining the
CraftBlockChangeDelegate method.  This makes it so that there is a
compatible method for both  CraftBlockChangeDelegate WorldGenerators and
unmodified WorldGenerators.

Additionally, this commit reduces and corrects the diffs in
WorldGenerator, moving the fix for layering violations to
CraftBlockChangeDelegate.
Try to detect when to disable jline automatically. Fixes BUKKIT-5028
Finish kicking player before letting their clone in. Fixes BUKKIT-4960
Correctly validate map colors. Fixes BUKKIT-4984

The validation check in CraftMapView.render(CraftPlayer) filters out any
values less than 0. As of Minecraft 1.7, -128 through -113 are valid colors,
so filtering them out prevents some of the new colors from being sent.

This commit fixes the issue by adjusting the validation check to include
any values less than or equal to -113.  As the minimum value for a byte is
-128, no invalid colors are included.
Merge branch 'master' of https://github.com/Bukkit/CraftBukkit.git