Only allow GuiAPI to load client-side
Fix >256 terrain gen block ID in Mo' Creatures wyvern biome

These IDs must be below 256 for proper terrain generation,
otherwise they are truncated to 8 bits.. which was causing saplings
to spawn on the surface, causing a StackOverflowError in block
updates, causing an out of memory error, causing the crashreporter
to load, but since its out of memory causing the error:
java.lang.NoClassDefFoundError: net/minecraft/world/CallableLvl1

https://f.cloud.github.com/assets/2968210/350028/6e8be65c-a002-11e2-9903-986250055020.png
Not an MCPC+ bug but filed https://github.com/MinecraftPortCentral/MCPC-Plus/issues/707

ModAnalyzer picked a high ID, but as the comments say, <256 is
required. However there is no ID restriction annotation, as used
for example in ExtraBiomesXL for ID Resolver:
https://github.com/ExtrabiomesXL/ExtrabiomesXL/blob/master/common/extrabiomes/utility/IDRestrictionAnnotation.java
so we have to fix this ID manually.

Now you can properly generate wyvern biomes.
Add generated config files

Generated by the mods on load, was not present for ModAnalyzer (yet).
Update for another run