Raised deployment target in Baker target to iOS 5.0 and set the default deployment family to 'iPad'
Fixed Baker orientation recognition problems (switched form old orientation variable to new book.orientation params)
Resume for pending Newsstand downloads.

This adds support for resuming incomplete Newsstand downloads.
Partial fix for #593.
Added "connecting" before "downloading" issue.

In a Newsstand-enabled shelf, tapping the "download" button will show a "connecting…" message before the "downloading…" message.
This will hopefully make it clear that - when a network connection is missing - download has not started yet, and that it will be started automatically by Newsstand as soon as a connection is available.

Closes #593
Fixed page reloading when closing a modal webview
Restored double tap on index view to close it.

Fixes #588.
Readme for 4.0
Removed stray file reference.
Fixes #608.
Added paging check.
Added colored placeholder for cover image, closes #581