add exception
add checks for ddl methods
add retrictions on calling routines
prevent null pointer exceptions when no SecurityService in place
undo changes to imports
add tests
add test call routine
rephrase item -> object
fix git issue with incorrect naming part 1
fix incorrect naming part 2
merge SytzeH: protection of elements outside of users schema

Merge pull request #1570 from SytzeH/sql-layer/routIndProtection
https://github.com/FoundationDB/sql-layer/pull/1570