[2.0] Incorporated CLI refactorings. Added support to namespaces and unlimited depth namespaces. Dropped globalArguments for now, since they interfer in DAG implementation.

[2.0] Removed xdebug builtin support from Debug::dump(). Added run-dql CLI Task. Updated tasks to wrap Exceptions thrown and diplay nicely. Fixed bug with CLI that ws incorrectly splitting strings into an array instead of consider them raw.

[2.0] Fixed several referential integrity issues. Fixed critical issue with inserts being run twice on postgresql/oracle. Added support for additional tree walkers that modify the AST prior to SQL construction and started to play with it in a testcase.

[2.0] Added more missing docblocks. Implemented a double-inclusion listener prevention in EventManager

[2.0] completed implementation of lazy loading for Collections. Created debug helper class. Fixed default for orderBy clause to ASC