Update GCCoreRecipeManager.java

20:38:41 [SEVERE] java.lang.NoSuchFieldException: pipeLiquidsCobblestone
20:38:41 [SEVERE]       at java.lang.Class.getField(Class.java:1539)
20:38:41 [SEVERE]       at micdoodle8.mods.galacticraft.core.recipe.GCCoreRecipeManager.addBuildCraftCraftingRecipes(GCCoreRecipeManager.java:325)
20:38:41 [SEVERE]       at micdoodle8.mods.galacticraft.core.recipe.GCCoreRecipeManager.loadRecipes(GCCoreRecipeManager.java:37)
20:38:41 [SEVERE]       at micdoodle8.mods.galacticraft.core.GalacticraftCore.postInit(GalacticraftCore.java:326)

Fix
Merge pull request #105 from danbka33/patch-1

Update GCCoreRecipeManager.java