Added Page<TEntity> queries to page services
Obsoluted CustomerQuery and implemented CachedCustomerQuery with paging
Merge pull request #815 from rustyswayne/1.4.0-lists

Obsoluted CustomerQuery and implemented CachedCustomerQuery with paging
Merge remote-tracking branch 'merchello/1.4.0-lists' into 1.4.0-lists
#M-362 Fixed
Merge pull request #816 from rustyswayne/1.4.0-lists

#M-362 Fixed
#M-364 Fixed
Merge pull request #817 from rustyswayne/1.4.0-lists

#M-364 Fixed
Introduced CachedProductQuery
Merge pull request #818 from rustyswayne/1.4.0-lists

Introduced CachedProductQuery
Partial fix to dropdown issues on new shipping provider dialog in Shipping page.
Merge remote-tracking branch 'merchello/1.4.0-lists' into 1.4.0-lists
Finished fix to shipping provider selection dropdown.