Fixing double callback issue on catalog save.

The catalog save callback was called twice, once after File.rename finished
and a line after that. This causes issues when under 'record' mode.
Merge pull request #38 from itayadler/master

Fixing double callback issue on catalog save.
Merge pull request #37 from fid-dev/master

Add 127.0.0.1 to default localhost addresses (with passing tests)
Merge pull request #2 from assaf/master

Pull latest from upstream