Issue #99: NPE when no rating information available for a TV Show.

Some TV Shows are not returning any rating information.
Merge branch 'hotfix/issue_99'
Set development version to 1.4.0-SNAPSHOT
Upgrade to universal-image-loader 1.8.5

This provides a couple of performance improvements related to image
buffering and image caching.
Set development version to 1.4.0-dev in manifest.