Introduced the ArticleQueryViewModel class.
Implemented the Count property.
Implemented ProvideQuery for the Count property.
Implemented PreviousEndId.
Addressed predicate for PreviousId.
Introduced the Subject property.
Addressed predicate for Subject.
Introduced the Body propety.
Addressed predicate for Body.
Implemented ContainsPredicate.
Implemented Predicate.Contains.
Used Contains instead of Like.
Fixed a typo.
Addressed using ArticleQueryViewModel in GetAsync.
Addressed GetHashCode for empty values.
Addressed expressing NoPredicate from result of ProvideQuery.
Addressed FromUri attribute in GetAsync.
Merge branch 'article-query-view-model'