Code review

Conflicts:
	src/net/alliknow/podcatcher/EpisodeListActivity.java
	src/net/alliknow/podcatcher/model/EpisodeDownloadManager.java
	src/net/alliknow/podcatcher/model/tasks/LoadDownloadsTask.java
	src/net/alliknow/podcatcher/model/tasks/LoadEpisodeMetadataTask.java
	src/net/alliknow/podcatcher/model/tasks/LoadPlaylistTask.java
	src/net/alliknow/podcatcher/model/tasks/remote/DownloadEpisodeTask.java