only serve from cache when maxAge is met or is explicitly set to false
fix deepClone for ArrayBuffers
log errors when widget not displayed
require fireInitial to be called explicitly
don't fulfill promise yet if queueing get request
Merge branch 'bug/631-maxAge_param_check' into feature/622-commit_cache
Merge branch 'bug/635-fix_deepClone_for_ArrayBuffers' into feature/622-commit_cache
Merge branch 'bug/639-undisplayed_errors' into feature/622-commit_cache
Merge branch 'bug/643-dont_fulfill_if_queueing_get' into feature/622-commit_cache