SearchBar is not displayed on iOS8

[jasonbodie]

We are only using one service and not setting the initialSearchTerm.

Debugging looks like the height of the searchBar is set to 0.

Calling [searchBar sizeToFit] during the DZNPhotoDisplayViewController setup code seems to resolve the problem. Also, obviously just setting the height of the searchbar also resolves the problem. I'm currently working to understand why the two versions of iOS behave differently. But for now I'll probably just use the sizeToFit option.

[dennislysenko]

+1, important issue for iOS8 support. Additionally, for completeness and/or diagnosing:

• the bug does not occur on cocoapods version, but on tip of master branch. It was caused by commit 417f09f.
• the search bar is also hidden when setting the initialSearchTerm.

Referenced PR #118 fixes it.