[FIX] XQuery, format-integer: German ordinals
[MIN] system dependent IO tests
[MOD] Core, Locking: Command optimizations, seperate read/write locking
[MIN] Core, Locking: Replace empty string with constant
[FIX] Core, Locking: Fix Locking Exceptions in RESTXQ

RESTXQ shares a Context, thus storing registered flag in there
was unsafe. Moved to Progress.
[FIX] Core, Locking: Add XQuery module tests and fixups
[Core, Locking]: Remove locks not needed any more to prevent a memory leak
Merge pull request #682 from JensErat/locking

[Core, Locking]: Different fixes and enhancements
[ADD] Locking revised; now based on visitor
[MIN] lock2 -> lock
[FIX] GUI, Server Dialog: "Access denied". Closes #684
[FIX] XQuery: only allow values to be bound to queries (no expressions)
Merge branch 'visitor-locking'
[Core, Locking]: Refactoring for supporting RestXQ
[MOD] XQuery, Visitor Locking: merge, various fixes
Merge pull request #687 from JensErat/visitor-locking

[Core, Locking]: Refactoring for supporting RestXQ
Merge branch 'master' into visitor-locking
[MOD] RESTXQ: database locking support
[FIX] XQuery, resource management (#685): check case on Linux systems
[FIX] XQuery, reallow Expr bindings (required by QT3TS)