Fixes #2953.

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."

As seen here => http://technet.microsoft.com/en-us/library/cc626307(v=sql.105).aspx

All func_get_args() calls have been moved to the top of the methods
because HHVM doesn't keep a copy of the original args for performance
reasons.

See facebook/hiphop-php#1027 for details.

- 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