Minor cleanup.
Merge pull request #198 from square/dimitris/minor-clean-up

Minor cleanup.
Bump max memory cache size to 30MB
Fix loaded from NPE.
Merge pull request #193 from square/dimitris/lf-fix

Fix loaded from NPE.
Refactor test name, update javadoc.
Merge pull request #199 from square/dimitris/minor

Refactor test name, update javadoc.
Bump batch delay to 200ms
Use onPreDrawListener instead. Add copyright sections.
Merge pull request #200 from square/dimitris/vto-fix

Use onPreDrawListener instead. Add copyright sections.
Remove centerInside()/centerCrop() validation.
Downloader updates.

* Update to support OkHttp 1.2 response source headers.
* Do not retry requests for non-200 response codes.
* Allow expired cache entries on final disk-only attept.
Merge pull request #208 from square/jw/update-okhttp

Downloader updates.
Merge branch 'master' of https://github.com/square/picasso

* 'master' of https://github.com/square/picasso:
  Downloader updates.
Merge pull request #202 from square/dimitris/bloo

Remove centerInside()/centerCrop() validation.
avoid crash when decode WebP network stream