Fix for back button being broken in web apps

It was still referring to the tw.bridge rather than calatrava.bridge
BindAll was not working since it could not find the bind method on pageObject. Changed it to call bind on 'this'
Fix ios:bootstrap error: The master repo requires CocoaPods 0.18.1
Merge pull request #70 from vivekjain10/cocoapods_version_fix

Fix ios:bootstrap error
Merge pull request #57 from jagregory/back-button-fix

Fix for back button being broken in web apps
Pull in fix for calatrava-ios
Merge pull request #68 from snehayv/patch-1

BindAll was not working since it could not find the bind method on pageO...