[FEATURE] Add isBoolean ViewHelper
Merge pull request #688 from Akii/development

[FEATURE] Add isBoolean ViewHelper
[BUGFIX] Using useShortcutUid should return shortcut url
Merge pull request #689 from hmspl/useShortcutUid

[BUGFIX] Using useShortcutUid should return shortcut url
[TASK] Refactor and cover Condition / Context scope with tests
[TASK] Refactor and cover Iterator / Merge, Pop, Random, Shift
[BUGFIX] Iterator / Reverse support for unfired QueryResult
[TASK] Refactor and cover Iterator / Slice ViewHelper
[TASK] Cover Iterator / Keys ViewHelper with tests
[DOC] Copyright block comment adjustment
[TASK] Cover Format / Plaintext ViewHelper with tests
[TASK] Cover Call ViewHelper with tests
[TASK] Regenerate schema
[TASK] Avoid double url encoding
Merge pull request #694 from bjo3rnf/encodedecode

[TASK] Avoid double url encoding
[TASK] Cover UncacheTemplateView with tests
[TASK] Cover deprecated options remap in Asset with tests
[TASK] Cover some of Page / Link ViewHelper with tests
[TASK] Add a missing stub test for Page / Resources / Fal
[BUGFIX] Fix LLL support and shorthand mode of Or ViewHelper