Allows result sets to be iterated over without running out of memory on
large data sets.

Fix PSR2 rules : "As per PSR2, the static declaration should come after the visibility declaration."

1. Reworked the parser syntax to use proper Oracle escaping syntax as '' instead of \'.
2. Moved valid tests to the Functional section to ensure correct SQL syntax and logic.

Closes #2261
Closes #2262
Closes #2386

- Fixed docblocks
- Removed return statements on void methods
- Cleaned up unused private / local variables
- Fixed license issues
- Removed SVN leftovers
- Fixed doctrine-project.org links
- Added line breaks before return statements