Merge tag 'v1.3'

v1.3
Merge tag 'v1.4'

v1.4
Merge tag 'v1.5'

v1.5
Remove blank node prefix and replacement.
Disable broken and useless query 'optimization'.
Revert "Remove blank node prefix and replacement."

This reverts commit 752e19828fe60d28b038a5564163d0bdbceb0b25.
Revert "Disable broken and useless query 'optimization'."

This reverts commit 858784e9871302a61feeaaeda9a8ecca603867d4.
Merge tag 'v1.6'

v1.6
Merge tag 'v1.7'

v1.7
add batch access control fetching method and use it in getAvailableModels
Merge branch 'refs/heads/develop' into feature/batchAcAndGraphConfig
Merge pull request #80 from AKSW/feature/batchAcAndGraphConfig

feature: batch ac and graph config