Added buildQuery and buildUnionSubQuery methods without misleading selectionArgs parameter.

The signatures of the existing buildQuery and buildUnionSubQuery methods include a selectionArgs
parameter that is not actually being used in the method implementations.  This parameter leads
to the misconception that SQL paramter substitution is carried out by these methods.  I added
new variants of these methods without that parameter and deprecated the old variants.

Change-Id: I1bf770d5c777649e9aac36d93aa93bd65bbcc2a3