Code cleanup and some warnings fixed.

Code cleanup and some warnings fixed.
Code cleanup and some warnings fixed.

Code cleanup and some warnings fixed.
Code cleanup and some warnings fixed.

Code cleanup and some warnings fixed.
Issue #20 in scaling indexes is fixed.
 fixed.

Item Bucket can work with disabled Sitecore.ItemBuckets.Scaling.config
file now without using both InMemoryIndex and RemoteIndex indexes.

Changes:
1. The "\Include\Sitecore.ItemBuckets.Scaling.config" file is disabled
now.
2. New "Buckets.Scaling.Enabled" setting has been introduced with
default value: false.
3. New "Sitecore.ItemBucket.Kernel.Util.Scaling.Enabled" property has
been introduced.
4.  InMemoryIndex and RemoteIndex indexes are not used if the
"Buckets.Scaling.Enabled" setting is switch to false.