Allow classes to create an iterator over an internal list.
Add test case for iterators.
Update dist.
dist-update and site-update fixed
expanded dist-update to synchronize tags between the repositories
don't anotate tags
integrated site update
use wget instead of curl and unzip to vendors dir
unzip in ~/vendors
Add __iter__ to tuple and dict.  Update tests.  Rebuild.
Merge pull request #141 from albertjan/travis-setup-3

Travis setup 3