Trim whitespace around page icon.
Fix "app icon set has unassigned images" warning.

Some sizes weren't necessary, and the iTunesArtwork is no longer part of the
app.
Tweak "show sidebar" image position.
Make page selector first/last/go button text visible.
Add Themes.plist keys for list detail color and list font name.
Just set the thread table's row height.
Casting some implicit casts making Xcode 5.1 testy

I’d change the model properties to NSIntegers, but I don’t know why there were int32_t’s in the first place
Removed unused badgeRadius in thread tags

Again, it was making Xcode 5.1 quite testy
Add logging for crash troubleshooting.