Replace use of wrappedJSObject to defer password lookup on LoginInfo instances with a Proxy instance

https://code.google.com/p/mozilla-keychain/issues/detail?id=65
update CHANGES
make sure we're not logging passwords!!
Update version number and compatibility
left some logging code behind that causes an error
fix copy and paste error in logging output
Added tag release-1.1.7 for changeset 786de1bce2d5
fix version numbers (AMO doesn't currently like 29.*)
close release-1.1.7