SVN revision 13 (trunk)

The latest code in SVN includes three basic filters scheduled for the 1.3 release. They are:
- OddFilterIterator
- EvenFilterIterator
- NumericFilterIterator

Their usage should be fairly self-explanatory. Simply construct them outside another iterator and they will filter the output accordingly. They work with the SeekableIterator interface & SPL's LimitIterator.

More filters are coming, but I decided to get the easy ones out of the way first. Developers that are able to build from the source tree are encouraged to build & "make test" on their platforms.