Enable sorting for QueryRequest
Refactor sorting API for QueryRequest: QueryRequest<B> sort(String sort) => QueryRequest<B> sort(String fieldName, SortDirection sortDirection)
Setting version to 0.49.0
Setting version to 0.50.0-SNAPSHOT
Update version in documentation to 0.49.0.
Update CHANGES.md
Merge branch 'master' into inventory
Merge branch 'add-sort-for-queryrequest'

Conflicts:
	CHANGES.md
Update CHANGES.md
Merge branch 'master' into inventory

Conflicts:
	CHANGES.md