Add new setting logEligibilityErrors, and put all instances of "Unabl…

…e to determine blocks eligibility..." behind it

src/main/java/mod/chiselsandbits/chiseledblock/BlockBitInfo.java

@@ -291,7 +291,7 @@ private static Class<?> getDeclaringClass(
 		}
 		catch ( final NoClassDefFoundError e )
 		{
-			Log.info( "Unable to determine blocks eligibility for chiseling, " + blkClass.getName() + " attempted to load " + e.getMessage() );
+			Log.eligibility( "Unable to determine blocks eligibility for chiseling, " + blkClass.getName() + " attempted to load " + e.getMessage() + " missing @SideOnly( Side.CLIENT ) or @Optional?" );
 			return blkClass;
 		}
 		catch ( final Throwable t )

src/main/java/mod/chiselsandbits/config/ModConfig.java

@@ -156,6 +156,9 @@ public class ModConfig extends Configuration
 	@Configured( category = "Client Performance Settings" )
 	public static UseVBO useVBO;
 
+	@Configured( category = "Troubleshooting" )
+	public boolean logEligibilityErrors;
+
 	@Configured( category = "Troubleshooting" )
 	public boolean useGetLightValue;
 
@@ -398,6 +401,7 @@ private void setDefaults()
 		disableCustomVertexFormats = false;
 		enableFaceLightmapExtraction = true;
 		useGetLightValue = true;
+		logEligibilityErrors = false;
 
 		showUsage = true;
 		invertBitBagFullness = false;

src/main/java/mod/chiselsandbits/core/Log.java

@@ -40,4 +40,13 @@ public static void noTileError(
 		}
 	}
 
+	public static void eligibility(
+			String message )
+	{
+		if ( ChiselsAndBits.getConfig().logEligibilityErrors )
+		{
+			getLogger().info( message );
+		}
+	}
+
 }

src/main/resources/assets/chiselsandbits/lang/en_us.lang

@@ -239,6 +239,7 @@ mod.chiselsandbits.config.ironChiselUses=Iron Chisel Uses
 mod.chiselsandbits.config.diamondChiselUses=Diamond Chisel Uses
 mod.chiselsandbits.config.goldChiselUses=Gold Chisel uses
 mod.chiselsandbits.config.wrenchUses=Wrench Uses
+mod.chiselsandbits.config.logEligibilityErrors=Log Exceptions when calculating Eligibility
 mod.chiselsandbits.config.disableCustomVertexFormats=Disable Using Custom Vertex Formats
 mod.chiselsandbits.config.enableModelCompression=Compress Vertex Data In Memory
 mod.chiselsandbits.config.useGetLightValue=Use Get Light Value to get light value of blocks.